diff --git a/services/user_service/main.py b/services/user_service/main.py
index 3888681..c45e8a0 100644
--- a/services/user_service/main.py
+++ b/services/user_service/main.py
@@ -82,7 +82,18 @@ async def register_user(user_data: UserCreate, db: AsyncSession = Depends(get_db
             )
 
     # Create new user
-    hashed_password = get_password_hash(user_data.password)
+    try:
+        hashed_password = get_password_hash(user_data.password)
+    except ValueError as e:
+        if "password cannot be longer than 72 bytes" in str(e):
+            raise HTTPException(
+                status_code=status.HTTP_400_BAD_REQUEST, 
+                detail="Password is too long. Please use a shorter password (max 70 characters)."
+            )
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=f"Password validation error: {str(e)}"
+        )
     
     # Используем phone_number как запасной вариант для phone
     phone = user_data.phone or user_data.phone_number
diff --git a/services/user_service/schemas.py b/services/user_service/schemas.py
index fec2e08..3d92a44 100644
--- a/services/user_service/schemas.py
+++ b/services/user_service/schemas.py
@@ -41,7 +41,16 @@ class UserBase(BaseModel):
 
 
 class UserCreate(UserBase):
-    password: str = Field(..., min_length=8, max_length=100)
+    password: str = Field(..., min_length=8, max_length=70, description="Password (will be truncated to 72 bytes for bcrypt compatibility)")
+    
+    @field_validator("password")
+    @classmethod
+    def validate_password_bytes(cls, v):
+        """Ensure password doesn't exceed bcrypt's 72-byte limit."""
+        password_bytes = v.encode('utf-8')
+        if len(password_bytes) > 72:
+            raise ValueError("Password is too long when encoded as UTF-8 (max 72 bytes for bcrypt)")
+        return v
 
 
 class UserUpdate(BaseModel):
@@ -93,7 +102,16 @@ class UserResponse(UserBase):
 class UserLogin(BaseModel):
     email: Optional[EmailStr] = None
     username: Optional[str] = None
-    password: str
+    password: str = Field(..., max_length=70, description="Password (will be truncated to 72 bytes for bcrypt compatibility)")
+    
+    @field_validator("password")
+    @classmethod
+    def validate_password_bytes(cls, v):
+        """Ensure password doesn't exceed bcrypt's 72-byte limit."""
+        password_bytes = v.encode('utf-8')
+        if len(password_bytes) > 72:
+            raise ValueError("Password is too long when encoded as UTF-8 (max 72 bytes for bcrypt)")
+        return v
 
 
 class Token(BaseModel):
diff --git a/shared/auth.py b/shared/auth.py
index d038fd3..98c3a7b 100644
--- a/shared/auth.py
+++ b/shared/auth.py
@@ -22,12 +22,20 @@ security = HTTPBearer()
 
 
 def verify_password(plain_password: str, hashed_password: str) -> bool:
-    """Verify password against hash."""
+    """Verify password against hash. Apply same truncation as used during hashing."""
+    # Apply same truncation logic as during hashing
+    password_bytes = plain_password.encode('utf-8')
+    if len(password_bytes) > 72:
+        plain_password = password_bytes[:72].decode('utf-8', errors='ignore')
     return pwd_context.verify(plain_password, hashed_password)
 
 
 def get_password_hash(password: str) -> str:
-    """Get password hash."""
+    """Get password hash. Truncate password to 72 bytes if necessary for bcrypt compatibility."""
+    # bcrypt has a 72-byte limit, so truncate if necessary
+    password_bytes = password.encode('utf-8')
+    if len(password_bytes) > 72:
+        password = password_bytes[:72].decode('utf-8', errors='ignore')
     return pwd_context.hash(password)