diff --git a/poetry.lock b/poetry.lock
index 375c190..cacc733 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -34,6 +34,21 @@ doc = ["Sphinx (>=8.2,<9.0)", "packaging", "sphinx-autodoc-typehints (>=1.2.0)",
 test = ["anyio[trio]", "blockbuster (>=1.5.23)", "coverage[toml] (>=7)", "exceptiongroup (>=1.2.0)", "hypothesis (>=4.0)", "psutil (>=5.9)", "pytest (>=7.0)", "trustme", "truststore (>=0.9.1) ; python_version >= \"3.10\"", "uvloop (>=0.21) ; platform_python_implementation == \"CPython\" and platform_system != \"Windows\" and python_version < \"3.14\""]
 trio = ["trio (>=0.26.1)"]
 
+[[package]]
+name = "base58"
+version = "2.1.1"
+description = "Base58 and Base58Check implementation."
+optional = false
+python-versions = ">=3.5"
+groups = ["main"]
+files = [
+    {file = "base58-2.1.1-py3-none-any.whl", hash = "sha256:11a36f4d3ce51dfc1043f3218591ac4eb1ceb172919cebe05b52a5bcc8d245c2"},
+    {file = "base58-2.1.1.tar.gz", hash = "sha256:c5d0cb3f5b6e81e8e35da5754388ddcc6d0d14b6c6a132cb93d69ed580a7278c"},
+]
+
+[package.extras]
+tests = ["PyHamcrest (>=2.0.2)", "mypy", "pytest (>=4.6)", "pytest-benchmark", "pytest-cov", "pytest-flake8"]
+
 [[package]]
 name = "boto3"
 version = "1.37.16"
@@ -216,6 +231,24 @@ files = [
     {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
 ]
 
+[[package]]
+name = "deprecated"
+version = "1.2.18"
+description = "Python @deprecated decorator to deprecate old python classes, functions or methods."
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
+groups = ["main"]
+files = [
+    {file = "Deprecated-1.2.18-py2.py3-none-any.whl", hash = "sha256:bd5011788200372a32418f888e326a09ff80d0214bd961147cfed01b5c018eec"},
+    {file = "deprecated-1.2.18.tar.gz", hash = "sha256:422b6f6d859da6f2ef57857761bfb392480502a64c3028ca9bbe86085d72115d"},
+]
+
+[package.dependencies]
+wrapt = ">=1.10,<2"
+
+[package.extras]
+dev = ["PyTest", "PyTest-Cov", "bump2version (<1)", "setuptools ; python_version >= \"3.12\"", "tox"]
+
 [[package]]
 name = "dnspython"
 version = "2.7.0"
@@ -251,6 +284,18 @@ files = [
 [package.dependencies]
 python-dotenv = "*"
 
+[[package]]
+name = "ecpy"
+version = "1.2.5"
+description = "Pure Pyhton Elliptic Curve Library"
+optional = false
+python-versions = "*"
+groups = ["main"]
+files = [
+    {file = "ECPy-1.2.5-py3-none-any.whl", hash = "sha256:559c92e42406d9d1a6b2b8fc26e6ad7bc985f33903b72f426a56cb1073a25ce3"},
+    {file = "ECPy-1.2.5.tar.gz", hash = "sha256:9635cffb9b6ecf7fd7f72aea1665829ac74a1d272006d0057d45a621aae20228"},
+]
+
 [[package]]
 name = "fastapi"
 version = "0.115.11"
@@ -542,6 +587,45 @@ files = [
 dev = ["pre-commit", "tox"]
 testing = ["pytest", "pytest-benchmark"]
 
+[[package]]
+name = "pycryptodome"
+version = "3.22.0"
+description = "Cryptographic library for Python"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+groups = ["main"]
+files = [
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+    {file = "pycryptodome-3.22.0.tar.gz", hash = "sha256:fd7ab568b3ad7b77c908d7c3f7e167ec5a8f035c64ff74f10d47a4edd043d723"},
+]
+
 [[package]]
 name = "pydantic"
 version = "2.10.6"
@@ -1060,6 +1144,18 @@ anyio = ">=3.6.2,<5"
 [package.extras]
 full = ["httpx (>=0.27.0,<0.29.0)", "itsdangerous", "jinja2", "python-multipart (>=0.0.18)", "pyyaml"]
 
+[[package]]
+name = "types-deprecated"
+version = "1.2.15.20250304"
+description = "Typing stubs for Deprecated"
+optional = false
+python-versions = ">=3.9"
+groups = ["main"]
+files = [
+    {file = "types_deprecated-1.2.15.20250304-py3-none-any.whl", hash = "sha256:86a65aa550ea8acf49f27e226b8953288cd851de887970fbbdf2239c116c3107"},
+    {file = "types_deprecated-1.2.15.20250304.tar.gz", hash = "sha256:c329030553029de5cc6cb30f269c11f4e00e598c4241290179f63cda7d33f719"},
+]
+
 [[package]]
 name = "typing-extensions"
 version = "4.12.2"
@@ -1332,7 +1428,118 @@ files = [
     {file = "websockets-15.0.1.tar.gz", hash = "sha256:82544de02076bafba038ce055ee6412d68da13ab47f0c60cab827346de828dee"},
 ]
 
+[[package]]
+name = "wrapt"
+version = "1.17.2"
+description = "Module for decorators, wrappers and monkey patching."
+optional = false
+python-versions = ">=3.8"
+groups = ["main"]
+files = [
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+]
+
+[[package]]
+name = "xrpl-py"
+version = "4.1.0"
+description = "A complete Python library for interacting with the XRP ledger"
+optional = false
+python-versions = "<4.0,>=3.8.1"
+groups = ["main"]
+files = [
+    {file = "xrpl_py-4.1.0-py3-none-any.whl", hash = "sha256:4cbe6eef92b78813713d5029518b16ee8e826389056a2e6a8b3866cb5c332fa4"},
+    {file = "xrpl_py-4.1.0.tar.gz", hash = "sha256:be07189dfaaf0472a9d12919a5985329b588eb33f4c9ec099d7c3e470e735d1c"},
+]
+
+[package.dependencies]
+base58 = ">=2.1.0,<3.0.0"
+Deprecated = ">=1.2.13,<2.0.0"
+ECPy = ">=1.2.5,<2.0.0"
+httpx = ">=0.18.1,<0.29.0"
+pycryptodome = ">=3.16.0,<4.0.0"
+types-Deprecated = ">=1.2.9,<2.0.0"
+typing-extensions = ">=4.2.0,<5.0.0"
+websockets = ">=11"
+
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.12"
-content-hash = "b53a95f09571e6fafaf668854c76674b9b9db12fa3dc5e3b84d9a3b76166605b"
+content-hash = "25270de07e4ad779b002229754e65cb6b28cd0f0ff93572ee244a568339ea1fd"
diff --git a/pyproject.toml b/pyproject.toml
index a90dae7..3eec569 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ pymongo = "^4.11.3"
 requests = "^2.32.3"
 python-multipart = "^0.0.20"
 sqlalchemy = "^2.0.39"
+xrpl-py = "^4.1.0"
 
 [build-system]
 requires = ["poetry-core"]
diff --git a/src/main/document/service/document_service.py b/src/main/document/service/document_service.py
index 3f08120..47aeebf 100644
--- a/src/main/document/service/document_service.py
+++ b/src/main/document/service/document_service.py
@@ -2,7 +2,9 @@
 #2. 이를 db에 저장한다.
 #3. client에게 보낸다.
 
-from src.main.document.repository.document_repository import get_all_documents, save_document, get_document, get_documents_by_user
+from src.main.document.repository.document_repository import  get_all_documents, save_document, get_document
+from src.main.user.repository.UserRepository import get_user
+from src.main.nft.service.nft_service import process_nft_issuance_with_response
 from src.main.document.dto.document import saveDocument, documentRequestDto
 from datetime import datetime
 import asyncio
@@ -29,6 +31,18 @@ async def save_document_service(request: documentRequestDto, user_id: str) :
     #db에 저장하기
     document_id = save_document(saved)
 
+    #point & grade 구하기
+    user = get_user(user_id)
+    point = user.get("point")
+    grade = user.get("nft_grade")
+    user_id = user.get("user_id")
+
+    #point 올리기기
+    point += 500
+
+    #nft 발급하기
+    await process_nft_issuance_with_response(user_id, grade, point)
+    
     return document_id 
 
 # 조회하기
diff --git a/src/main/nft/dto/nft_dto.py b/src/main/nft/dto/nft_dto.py
new file mode 100644
index 0000000..01c6db5
--- /dev/null
+++ b/src/main/nft/dto/nft_dto.py
@@ -0,0 +1,22 @@
+from pydantic import BaseModel
+from typing import Dict
+from datetime import datetime
+
+#Nft 를 ResponseDto (checking 용)
+class NftResponseDto(BaseModel):
+    user_wallet_id: str
+    point: int
+    nft_id: str
+    nft_grade: str
+    transaction_hash: str
+    issued_at: datetime
+    expired_at: datetime
+
+#db 는 따로 nft 따로 만들어서 저장하기
+class NftSaveDto(BaseModel):
+    nft_id: str
+    user_wallet: str
+    nft_grade: str
+    transaction_hash: str
+    issued_at: datetime
+    expired_at: datetime
\ No newline at end of file
diff --git a/src/main/nft/repository/nft_repository.py b/src/main/nft/repository/nft_repository.py
new file mode 100644
index 0000000..e858d97
--- /dev/null
+++ b/src/main/nft/repository/nft_repository.py
@@ -0,0 +1,28 @@
+from src.config.mongodb import get_mongo_client
+from src.main.nft.dto.nft_dto import NftSaveDto
+from datetime import datetime
+
+
+#db에 nft_grade 집어넣기랑 point 갱신하기
+def save_userDB_nft(user_id:str, nft_grade: str, point: int):
+    client = get_mongo_client()
+    db = client['xrpedia-data']
+    nft_collection = db['wallets']
+
+    if not user_id:
+        raise Exception(404, detail="회원 정보를 찾을 수 없습니다.")
+    
+    nft_collection.update_one(
+        {"user_id": user_id}, #필터
+        {"$set": {"point": point, "nft_grade": nft_grade}}
+    )
+
+
+
+# repository/nft_repository.py
+def save_nfts_bulk(response: NftSaveDto):
+    client = get_mongo_client()
+    db = client['xrpedia-data']
+    nft_collection = db['nft']
+
+    nft_collection.insert_one(response)
\ No newline at end of file
diff --git a/src/main/nft/service/nft_service.py b/src/main/nft/service/nft_service.py
new file mode 100644
index 0000000..0594800
--- /dev/null
+++ b/src/main/nft/service/nft_service.py
@@ -0,0 +1,145 @@
+from src.main.nft.dto.nft_dto import NftResponseDto, NftSaveDto
+from src.main.user.repository.UserRepository import get_user
+from src.main.nft.repository.nft_repository import save_userDB_nft, save_nfts_bulk 
+from datetime import datetime, timezone, timedelta
+import asyncio
+
+# XRPL 관련 모듈
+#pip install xrpl-py + python -m poetry add xrpl.py
+from xrpl.asyncio.transaction import submit_and_wait
+from xrpl.models.transactions.nftoken_mint import NFTokenMint, NFTokenMintFlag
+from xrpl.asyncio.wallet import generate_faucet_wallet
+from xrpl.wallet import Wallet
+from xrpl.clients import JsonRpcClient
+import json
+
+
+# XRPL 설정
+print("Connecting to Testnet...")
+JSON_RPC_URL = "https://s.devnet.rippletest.net:51234/"
+client = JsonRpcClient(JSON_RPC_URL)
+
+# 등급별 Taxon 값 설정 (NFT 분류 번호)
+NFT_GRADE_TAXON = {
+    "platinum": 4,
+    "gold": 3,
+    "silver": 2,
+    "bronze": 1  # 기본값
+}
+
+# 테스트 지갑 생성 (테스트넷용)
+# generate~ 함수는 내부적으로 비동기 함수임(asyncio.run()) -> ㅇ미 비동기에서 비동기로 겹침침
+async def generate_wallet ():
+    wallet = await generate_faucet_wallet(client=client)
+    return wallet, wallet.address
+
+# XRPL 기반 NFT 민팅(XRPL 에서 NFT를 실제로 발급(MINt) 하는 핵심 함수)
+# 개별 사용자 1명에게 NFT를 발급하는 함수
+async def mint_nft_on_xrpl(user, grade, issuser_wallet, issuserAddr):
+    issued_at = datetime.now(timezone.utc).replace(hour=0, minute=0, second=0, microsecond=0)
+    expired_at = issued_at + timedelta(days=180)
+
+    mint_tx = NFTokenMint(
+        account=issuserAddr, # 발급자(대표자)
+        nftoken_taxon=NFT_GRADE_TAXON[grade], # NFT 분류 Id (의미를 부여) grade에 따라 자동 적용용
+        flags=NFTokenMintFlag.TF_TRANSFERABLE # NFT 가 전송 가능한 것인지 여부 설정정
+        )
+
+    try:
+        # xrpl에서 해당 정보를 트랜잭션에 넘기기기
+        # submit_and_wait(transaction, client(노드 클라이언트 자체), wallet(서명에 사용될 지갑 객체체))
+        response = await submit_and_wait(transaction=mint_tx, client=client, wallet=issuser_wallet)
+        # transaction 처리 결과
+        result = response.result
+
+        # 트랜잭션 해시 추출(트랜잭션 고유 ID) -> 블록 탐색기에서 이 해시로 NFT 상태 조회 가능
+        tx_hash = result['hash']
+        if not tx_hash or not isinstance(tx_hash, str):
+            raise Exception("트랜잭션 해시를 정상적으로 받지 못했습니다.")
+        
+        # NFT ID 파싱을 위함
+        nft_id = ""
+        
+        for node in result['meta']['AffectedNodes']:
+            node_data = node.get("CreatedNode") or node.get("ModifiedNode")
+            if node_data and node_data["LedgerEntryType"] == "NFTokenPage":
+                tokens = node_data.get("NewFields", {}).get("NFTokens") or node_data.get("FinalFields", {}).get("NFTokens")
+                if tokens:
+                    for token in tokens:
+                        nft = token.get("NFToken")
+                        if nft and "NFTokenID" in nft:
+                            nft_id = nft["NFTokenID"]
+                            break
+            if nft_id:
+                break
+
+        if not nft_id:
+            raise Exception("NFT ID 추출 실패")
+
+        return {
+            "user_wallet": user.get("_id"),
+            "point": user.get("point"),
+            "nft_id": nft_id,
+            "nft_grade": user.get("nft_grade"),
+            "transaction_hash": tx_hash,
+            "issued_at": issued_at,
+            "expired_at": expired_at
+        }
+    
+    except Exception as e:
+        print(f"NFT 민팅 실패: {e}")
+        return None
+
+#grade 다음 단계 반환
+async def next_grade(grade:str)-> str:
+    if not grade: 
+        raise Exception(422, detail="none 입니다.")
+    
+    if grade =="bronze":
+        return "silver"
+    elif grade == "silver":
+        return "gold"
+    elif grade == "gold":
+        return "platinum"
+    elif grade == "platinum":
+        return "platinum"  # 이미 최고 등급이면 그대로 유지
+    else:
+        raise Exception("400: 유효하지 않은 등급입니다.")
+
+# 전체 로직
+async def process_nft_issuance_with_response(user_id: str, origin_grade:str, point: int):
+    issuser_wallet, issuserAddr = await generate_wallet()
+
+    #grade 다음 단계 구하기 로직 
+    grade = await next_grade(origin_grade)
+
+    #user_id
+    user = get_user(user_id)
+
+    # 하나 발급 -> grade의 다음 단계로 받아오게끔 하기
+    result = await mint_nft_on_xrpl(user, grade, issuser_wallet, issuserAddr)
+
+    # DB 저장용 객체 변환
+    nft_records = NftSaveDto(
+            nft_id=result["nft_id"],
+            user_wallet=result["user_wallet"],
+            nft_grade=result["nft_grade"],
+            transaction_hash=result["transaction_hash"],
+            issued_at=result["issued_at"],
+            expired_at=result["expired_at"]
+        )
+    save_nfts_bulk(nft_records.model_dump())
+
+    #user에도 반영되도록 구현현
+    save_userDB_nft(user_id, grade, point)
+
+    # DTO 변환
+    print(NftResponseDto(
+            user_wallet_id=result["user_wallet"],
+            point=result["point"],
+            nft_id=result["nft_id"],
+            nft_grade=result["nft_grade"],
+            transaction_hash=result["transaction_hash"],
+            issued_at=result["issued_at"],
+            expired_at=result["expired_at"]
+        ))
\ No newline at end of file
diff --git a/src/main/user/repository/UserRepository.py b/src/main/user/repository/UserRepository.py
new file mode 100644
index 0000000..52c4c04
--- /dev/null
+++ b/src/main/user/repository/UserRepository.py
@@ -0,0 +1,21 @@
+from src.config.mongodb import get_mongo_client
+
+#db에서 user 가져오기
+def get_user(user_id: str) -> str:
+    client = get_mongo_client()
+    db = client['xrpedia-data']
+    nft_collection = db['wallets']
+
+    if not user_id:
+        raise Exception(404, detail="회원 정보를 찾을 수 없습니다.")
+    
+    
+    user = nft_collection.find_one({"user_id": user_id})
+
+    if not user:
+        raise Exception(404, detail="해당 유저를 찾을 수 없습니다.")
+    
+    # ObjectId는 JSON 직렬화가 안 되므로 필요 시 string으로 바꿔줍니다
+    user["_id"] = str(user["_id"])
+
+    return user
\ No newline at end of file