diff --git a/backend/app/schemas/review.py b/backend/app/schemas/review.py
new file mode 100644
index 0000000..c4fca68
--- /dev/null
+++ b/backend/app/schemas/review.py
@@ -0,0 +1,37 @@
+"""Review schemas."""
+from pydantic import BaseModel, Field
+from typing import Optional
+from datetime import datetime
+
+
+class ReviewCreate(BaseModel):
+    task_id: int
+    project_id: int
+    review_type: str = "approval"
+    review_content: str = ""
+    auto_check_result: str = "{}"
+
+
+class ReviewDecision(BaseModel):
+    """Reviewer's approve/reject decision."""
+    comment: str = ""
+    status: str = Field(..., pattern="^(approved|rejected)$")
+
+
+class ReviewResponse(BaseModel):
+    id: int
+    task_id: int
+    project_id: int
+    review_type: str
+    status: str
+    reviewer_id: Optional[int] = None
+    reviewer_role: Optional[str] = None
+    review_content: str = ""
+    reviewer_comment: str = ""
+    auto_check_result: str = "{}"
+    submitted_at: datetime
+    reviewed_at: Optional[datetime] = None
+    tenant_id: int
+    created_at: datetime
+
+    model_config = {"from_attributes": True}