diff --git a/src/main/java/com/no1/wms/category/CategoryController.java b/src/main/java/com/no1/wms/category/CategoryController.java
index b7fbb8e..1efce4e 100644
--- a/src/main/java/com/no1/wms/category/CategoryController.java
+++ b/src/main/java/com/no1/wms/category/CategoryController.java
@@ -10,6 +10,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 
@@ -84,7 +85,7 @@ public class CategoryController {
 	}
 	// 수정 - Ajax
 
-	@PutMapping("/category//update_process")
+	@PutMapping("/category/update_process")
 	@ResponseBody
 	public int updateProcess(CategoryDto dto, Model m) {
 
@@ -112,6 +113,7 @@ public class CategoryController {
 		}
 	}
 	
+	// 엑셀다운로드테스트
 	@GetMapping("/category/download")
 	public void downloadExcel(HttpServletResponse response) {
 		List<CategoryDto> dto = categoryService.selectAllCategory();
@@ -123,8 +125,13 @@ public class CategoryController {
 	}
 	
 	// KAN코드 중복확인 메서드
+	
+	@PostMapping("/category/chackKancode")
+	@ResponseBody
 	public int chackKancode(String kan_code) {
-		return 0;
+		int chack = categoryService.checkKan(kan_code);
+		System.out.println(chack);
+		return chack;
 	}
 	
 	
diff --git a/src/main/java/com/no1/wms/category/CategoryService.java b/src/main/java/com/no1/wms/category/CategoryService.java
index cdcbc57..2cf2679 100644
--- a/src/main/java/com/no1/wms/category/CategoryService.java
+++ b/src/main/java/com/no1/wms/category/CategoryService.java
@@ -52,7 +52,15 @@ public class CategoryService {
 		return mapper.activateByKanCode(kan_code);
 	}
 	
-	
+	public int checkKan(String kan_code) {
+		CategoryDto dto = mapper.selectByKanCode(kan_code);
+		String kancode = dto.getKan_code();
+		if(kancode == null) {
+			return 0;
+		}else {
+			return 1;
+		}
+	}
 	
 	
 }
diff --git a/src/main/resources/mappers/CategoryMapper.xml b/src/main/resources/mappers/CategoryMapper.xml
index f81d0c6..7e0045e 100644
--- a/src/main/resources/mappers/CategoryMapper.xml
+++ b/src/main/resources/mappers/CategoryMapper.xml
@@ -15,19 +15,19 @@
 	<update id="updateByKanCode" parameterType="CategoryDto">
 		UPDATE product_category 
 		SET cls_nm_1 = #{dto.cls_nm_1}, cls_nm_2 = #{dto.cls_nm_2},cls_nm_3 = #{dto.cls_nm_3}, cls_nm_4 = #{dto.cls_nm_4}
-		WHERE kan_code = {dto.kan_code}
+		WHERE kan_code = #{dto.kan_code}
 	</update>
 	
 	<update id="deactivateByKanCode" parameterType="String">
 		UPDATE product_category 
 		SET activation = 0
-		WHERE kan_code = {kan_code}
+		WHERE kan_code = #{kan_code}
 	</update>
 	
 	<update id="activateByKanCode" parameterType="String">
 		UPDATE product_category 
 		SET activation = 1
-		WHERE kan_code = {kan_code}
+		WHERE kan_code = #{kan_code}
 	</update>
 	
 	
diff --git a/src/main/webapp/WEB-INF/views/category/create.jsp b/src/main/webapp/WEB-INF/views/category/create.jsp
index 05fb642..249d531 100644
--- a/src/main/webapp/WEB-INF/views/category/create.jsp
+++ b/src/main/webapp/WEB-INF/views/category/create.jsp
@@ -46,8 +46,8 @@ input {
 					<input type="text" name="cls_nm_4">
 					<br>
 					<li>KAN 분류코드</li>
-					<input type="text" name="kan_code">
-					<button id="checkKan">중복확인</button>
+					<input type="text" name="kan_code" id="kan_code">
+					<input type="button" id="checkKan" value="중복확인">
 					<span id="chackDiv"></span>
 				</ul>
 			</div>
@@ -59,10 +59,50 @@ input {
 
 		<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
 		<script>
-			$("#checkKan").click(function() {
-				
-			})
-		</script>
+    $(document).ready(function() {
+        $("#checkKan").on("click", function() {
+            // 중복 클릭 방지를 위해 버튼을 비활성화
+            $("#checkKan").prop("disabled", true);
+
+            // 이전 결과 및 메시지 초기화
+            $("#chackDiv").html("");
+
+            var kanCode = $("#kan_code").val();
+
+            if (!kanCode) {
+                $("#chackDiv").html("KAN 분류코드를 입력하세요.");
+                // 버튼 다시 활성화
+                $("#checkKan").prop("disabled", false);
+                return false;
+            }
+
+            $.ajax({
+            	type: "post",
+                url: "/category/chackKancode",
+                data: { kan_code: kanCode },
+                dataType: text
+            }).done(function(data) {
+                if (data == 0) {
+                    $("#chackDiv").html("사용가능합니다");
+                    $("#chackDiv").append("<input type='hidden' id='kan_chack' value='1'>");
+                } else {
+                    $("#chackDiv").html("이미 사용중인 KAN 분류코드입니다.");
+                }
+            }).fail(function() {
+                alert("오류가 발생했습니다.");
+            }).always(function() {
+                // Ajax 요청 완료 후 버튼 다시 활성화
+                $("#checkKan").prop("disabled", false);
+            });
+        });
+
+        // 포커스를 잃었을 때 KAN 분류코드 입력 안내 메시지를 초기화
+        $("#kan_code").on("blur", function() {
+            $("#chackDiv").html("");
+        });
+    });
+</script>
+
 	</div>
 </body>
 </html>
\ No newline at end of file