diff --git a/finam_trade_api/base_client/models.py b/finam_trade_api/base_client/models.py
index b91320e..4bcb0d8 100644
--- a/finam_trade_api/base_client/models.py
+++ b/finam_trade_api/base_client/models.py
@@ -21,6 +21,4 @@ class FinamMoney(BaseModel):
     """
     A custom money type for Finam API responses.
     """
-    units: str = "0"
-    currency_code: str = "RUB"
-    nanos: int = 0
+    value: str = "0"
diff --git a/finam_trade_api/order/__init__.py b/finam_trade_api/order/__init__.py
index ec4ca40..d8f8556 100644
--- a/finam_trade_api/order/__init__.py
+++ b/finam_trade_api/order/__init__.py
@@ -1 +1,16 @@
+from finam_trade_api.order.model import (
+    CancelOrderRequest,
+    GetOrderRequest,
+    Leg,
+    Order,
+    OrdersRequest,
+    OrdersResponse,
+    OrderState,
+    OrderStatus,
+    OrderType,
+    Side,
+    StopCondition,
+    TimeInForce,
+    ValidBefore,
+)
 from finam_trade_api.order.order import OrderClient
diff --git a/finam_trade_api/order/model.py b/finam_trade_api/order/model.py
index a6eeeaa..00ea0f5 100644
--- a/finam_trade_api/order/model.py
+++ b/finam_trade_api/order/model.py
@@ -1,11 +1,141 @@
+from datetime import datetime
 from enum import Enum
+from typing import Optional
 
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
+
+from finam_trade_api.base_client.models import FinamDecimal, FinamMoney
+
+
+class Side(str, Enum):
+    """Сторона заявки"""    
+    BUY = "SIDE_BUY"
+    SELL = "SIDE_SELL"
+
+
+class OrderStatus(str, Enum):
+    """Статус заявки"""
+    UNSPECIFIED = "ORDER_STATUS_UNSPECIFIED"
+    NEW = "ORDER_STATUS_NEW"
+    PARTIALLY_FILLED = "ORDER_STATUS_PARTIALLY_FILLED"
+    FILLED = "ORDER_STATUS_FILLED"
+    DONE_FOR_DAY = "ORDER_STATUS_DONE_FOR_DAY"
+    CANCELED = "ORDER_STATUS_CANCELED"
+    REPLACED = "ORDER_STATUS_REPLACED"
+    PENDING_CANCEL = "ORDER_STATUS_PENDING_CANCEL"
+    REJECTED = "ORDER_STATUS_REJECTED"
+    SUSPENDED = "ORDER_STATUS_SUSPENDED"
+    PENDING_NEW = "ORDER_STATUS_PENDING_NEW"
+    EXPIRED = "ORDER_STATUS_EXPIRED"
+    FAILED = "ORDER_STATUS_FAILED"
+    FORWARDING = "ORDER_STATUS_FORWARDING"
+    WAIT = "ORDER_STATUS_WAIT"
+    DENIED_BY_BROKER = "ORDER_STATUS_DENIED_BY_BROKER"
+    REJECTED_BY_EXCHANGE = "ORDER_STATUS_REJECTED_BY_EXCHANGE"
+    WATCHING = "ORDER_STATUS_WATCHING"
+    EXECUTED = "ORDER_STATUS_EXECUTED"
+    DISABLED = "ORDER_STATUS_DISABLED"
+    LINK_WAIT = "ORDER_STATUS_LINK_WAIT"
+    SL_GUARD_TIME = "ORDER_STATUS_SL_GUARD_TIME"
+    SL_EXECUTED = "ORDER_STATUS_SL_EXECUTED"
+    SL_FORWARDING = "ORDER_STATUS_SL_FORWARDING"
+    TP_GUARD_TIME = "ORDER_STATUS_TP_GUARD_TIME"
+    TP_EXECUTED = "ORDER_STATUS_TP_EXECUTED"
+    TP_CORRECTION = "ORDER_STATUS_TP_CORRECTION"
+    TP_FORWARDING = "ORDER_STATUS_TP_FORWARDING"
+    TP_CORR_GUARD_TIME = "ORDER_STATUS_TP_CORR_GUARD_TIME"
+
+
+class OrderType(str, Enum):
+    """Тип заявки"""
+    UNSPECIFIED = "ORDER_TYPE_UNSPECIFIED"
+    MARKET = "ORDER_TYPE_MARKET"
+    LIMIT = "ORDER_TYPE_LIMIT"
+    STOP = "ORDER_TYPE_STOP"
+    STOP_LIMIT = "ORDER_TYPE_STOP_LIMIT"
+    MULTI_LEG = "ORDER_TYPE_MULTI_LEG"
+
+
+class StopCondition(str, Enum):
+    """Условие срабатывания стоп заявки"""
+    UNSPECIFIED = "STOP_CONDITION_UNSPECIFIED"
+    LAST_UP = "STOP_CONDITION_LAST_UP"
+    LAST_DOWN = "STOP_CONDITION_LAST_DOWN"
+
+
+class TimeInForce(str, Enum):
+    """Срок действия заявки"""
+    UNSPECIFIED = "TIME_IN_FORCE_UNSPECIFIED"
+    DAY = "TIME_IN_FORCE_DAY"
+    GOOD_TILL_CANCEL = "TIME_IN_FORCE_GOOD_TILL_CANCEL"
+    GOOD_TILL_CROSSING = "TIME_IN_FORCE_GOOD_TILL_CROSSING"
+    EXT = "TIME_IN_FORCE_EXT"
+    ON_OPEN = "TIME_IN_FORCE_ON_OPEN"
+    ON_CLOSE = "TIME_IN_FORCE_ON_CLOSE"
+    IOC = "TIME_IN_FORCE_IOC"
+    FOK = "TIME_IN_FORCE_FOK"
+
+
+class ValidBefore(str, Enum):
+    """Срок действия условной заявки"""
+    UNSPECIFIED = "VALID_BEFORE_UNSPECIFIED"
+    END_OF_DAY = "VALID_BEFORE_END_OF_DAY"
+    GOOD_TILL_CANCEL = "VALID_BEFORE_GOOD_TILL_CANCEL"
+    GOOD_TILL_DATE = "VALID_BEFORE_GOOD_TILL_DATE"
+
+
+class Leg(BaseModel):
+    """Лег"""
+    symbol: str
+    quantity: FinamDecimal
+    side: Side
+
+
+class Order(BaseModel):
+    """Информация о заявке"""
+    account_id: str
+    symbol: str
+    quantity: FinamDecimal
+    side: Side
+    type: OrderType
+    time_in_force: Optional[TimeInForce] = None
+    limit_price: Optional[FinamMoney] = None
+    stop_price: Optional[FinamMoney] = None
+    stop_condition: Optional[StopCondition] = None
+    legs: Optional[list[Leg]] = Field(default=None)
+    client_order_id: Optional[str] = Field(default=None, max_length=50)
+    valid_before: Optional[ValidBefore] = None
+    comment: Optional[str] = Field(default=None, max_length=128)
+
+
+class CancelOrderRequest(BaseModel):
+    """Запрос отмены торговой заявки"""
+    account_id: str
+    order_id: str
+
+
+class GetOrderRequest(BaseModel):
+    """Запрос на получение конкретного ордера"""
+    account_id: str
+    order_id: str
+
+
+class OrdersRequest(BaseModel):
+    """Запрос получения списка торговых заявок"""
+    account_id: str
 
 
 class OrderState(BaseModel):
-    orderId: str
+    """Состояние заявки"""
+    order_id: str
+    exec_id: str
+    status: OrderStatus
+    order: Order
+    transact_at: datetime
+    accept_at: Optional[datetime] = None
+    withdraw_at: Optional[datetime] = None
 
 
 class OrdersResponse(BaseModel):
+    """Список торговых заявок"""
     orders: list[OrderState]
diff --git a/finam_trade_api/order/order.py b/finam_trade_api/order/order.py
index 0f97eb1..0626010 100644
--- a/finam_trade_api/order/order.py
+++ b/finam_trade_api/order/order.py
@@ -1,5 +1,15 @@
 from finam_trade_api import TokenManager
 from finam_trade_api.base_client import BaseClient
+from finam_trade_api.exceptions import FinamTradeApiError
+from finam_trade_api.models import ErrorModel
+from finam_trade_api.order.model import (
+    CancelOrderRequest,
+    GetOrderRequest,
+    Order,
+    OrdersRequest,
+    OrdersResponse,
+    OrderState,
+)
 
 
 class OrderClient(BaseClient):
@@ -7,14 +17,106 @@ def __init__(self, token_manager: TokenManager):
         super().__init__(token_manager)
         self._url = "/accounts"
 
-    async def get_orders(self):
-        raise NotImplementedError
 
-    async def get_order(self):
-        raise NotImplementedError
+    async def get_orders(self, params: OrdersRequest) -> OrdersResponse:
+        """
+        Получение списка заявок для аккаунта.
 
-    async def place_order(self):
-        raise NotImplementedError
+        Args:
+            params (OrdersRequest): Параметры запроса с идентификатором аккаунта.
 
-    async def cancel_order(self):
-        raise NotImplementedError
+        Returns:
+            OrdersResponse: Список торговых заявок.
+
+        Raises:
+            FinamTradeApiError: Если запрос завершился с ошибкой.
+        """
+        response, ok = await self._exec_request(
+            self.RequestMethod.GET,
+            f"{self._url}/{params.account_id}/orders",
+        )
+
+        if not ok:
+            err = ErrorModel(**response)
+            raise FinamTradeApiError(f"code={err.code} | message={err.message} | details={err.details}")
+
+        return OrdersResponse(**response)
+
+
+    async def get_order(self, params: GetOrderRequest) -> OrderState:
+        """
+        Получение информации о конкретном ордере.
+
+        Args:
+            params (GetOrderRequest): Параметры запроса с идентификатором аккаунта и заявки.
+
+        Returns:
+            OrderState: Состояние заявки.
+
+        Raises:
+            FinamTradeApiError: Если запрос завершился с ошибкой.
+        """
+        response, ok = await self._exec_request(
+            self.RequestMethod.GET,
+            f"{self._url}/{params.account_id}/orders/{params.order_id}",
+        )
+
+        if not ok:
+            err = ErrorModel(**response)
+            raise FinamTradeApiError(f"code={err.code} | message={err.message} | details={err.details}")
+
+        return OrderState(**response)
+
+
+    async def place_order(self, order: Order) -> OrderState:
+        """
+        Выставление биржевой заявки.
+
+        Args:
+            order (Order): Информация о заявке для выставления.
+
+        Returns:
+            OrderState: Состояние созданной заявки.
+
+        Raises:
+            FinamTradeApiError: Если запрос завершился с ошибкой.
+        """
+        # Используем model_dump с mode='json' для корректной сериализации enum'ов
+        payload = order.model_dump(mode="json", exclude_none=True)
+
+        response, ok = await self._exec_request(
+            self.RequestMethod.POST,
+            f"{self._url}/{order.account_id}/orders",
+            payload=payload,
+        )
+
+        if not ok:
+            err = ErrorModel(**response)
+            raise FinamTradeApiError(f"code={err.code} | message={err.message} | details={err.details}")
+
+        return OrderState(**response)
+
+
+    async def cancel_order(self, params: CancelOrderRequest) -> OrderState:
+        """
+        Отмена биржевой заявки.
+
+        Args:
+            params (CancelOrderRequest): Параметры запроса с идентификатором аккаунта и заявки.
+
+        Returns:
+            OrderState: Состояние отмененной заявки.
+
+        Raises:
+            FinamTradeApiError: Если запрос завершился с ошибкой.
+        """
+        response, ok = await self._exec_request(
+            self.RequestMethod.DELETE,
+            f"{self._url}/{params.account_id}/orders/{params.order_id}",
+        )
+
+        if not ok:
+            err = ErrorModel(**response)
+            raise FinamTradeApiError(f"code={err.code} | message={err.message} | details={err.details}")
+
+        return OrderState(**response)