diff --git a/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/entity/Order.java b/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/entity/Order.java
new file mode 100644
index 00000000..9d596eee
--- /dev/null
+++ b/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/entity/Order.java
@@ -0,0 +1,12 @@
+package com.example.pickingtdd.entity;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Order {
+
+    private Long orderId;
+    private String State;
+}
diff --git a/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/service/OrderService.java b/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/service/OrderService.java
new file mode 100644
index 00000000..2792c0e0
--- /dev/null
+++ b/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/service/OrderService.java
@@ -0,0 +1,8 @@
+package com.example.pickingtdd.service;
+
+import com.example.pickingtdd.entity.Order;
+
+public interface OrderService {
+
+    Order createOrder(Order order);
+}
diff --git a/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/service/OrderServiceImpl.java b/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/service/OrderServiceImpl.java
new file mode 100644
index 00000000..4eacd9df
--- /dev/null
+++ b/tdd_practice/pickingTDD/src/main/java/com/example/pickingtdd/service/OrderServiceImpl.java
@@ -0,0 +1,13 @@
+package com.example.pickingtdd.service;
+
+import com.example.pickingtdd.entity.Order;
+import org.springframework.stereotype.Service;
+
+@Service
+public class OrderServiceImpl implements OrderService {
+
+    @Override
+    public Order createOrder(Order order) {
+        return order;
+    }
+}
diff --git a/tdd_practice/pickingTDD/src/test/java/com/example/pickingtdd/service/OrderServiceTests.java b/tdd_practice/pickingTDD/src/test/java/com/example/pickingtdd/service/OrderServiceTests.java
new file mode 100644
index 00000000..62b289f1
--- /dev/null
+++ b/tdd_practice/pickingTDD/src/test/java/com/example/pickingtdd/service/OrderServiceTests.java
@@ -0,0 +1,26 @@
+package com.example.pickingtdd.service;
+
+import com.example.pickingtdd.entity.Order;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+public class OrderServiceTests {
+
+    @Autowired
+    OrderService orderService;
+
+    @Test
+    void create_order_success() {
+        Order order = new Order();
+        order.setOrderId(1L);
+        order.setState("Ordered");
+
+        order = orderService.createOrder(order);
+
+        Assertions.assertEquals(1L, order.getOrderId());
+        Assertions.assertEquals("Ordered", order.getState());
+    }
+}
diff --git a/tdd_practice/pickingTDD/todo.txt b/tdd_practice/pickingTDD/todo.txt
index 6190b534..2c06da86 100644
--- a/tdd_practice/pickingTDD/todo.txt
+++ b/tdd_practice/pickingTDD/todo.txt
@@ -8,4 +8,6 @@ SKU
 주문 -> 피킹리스트 -> 피커 -> 피킹완료
 
 ------- TO-DO -------
-[] ORDER 생성
+[] ORDER 검증
+
+[v] ORDER 생성