diff --git a/src/main/java/clap/server/adapter/inbound/web/statistics/StatisticsFindController.java b/src/main/java/clap/server/adapter/inbound/web/statistics/StatisticsFindController.java
index 726d9797..c2d25831 100644
--- a/src/main/java/clap/server/adapter/inbound/web/statistics/StatisticsFindController.java
+++ b/src/main/java/clap/server/adapter/inbound/web/statistics/StatisticsFindController.java
@@ -3,6 +3,7 @@
 import clap.server.application.port.inbound.statistics.CategoryTaskRequestUsecase;
 import clap.server.application.port.inbound.statistics.PeriodTaskProcessUsecase;
 import clap.server.application.port.inbound.statistics.PeriodTaskRequestUsecase;
+import clap.server.application.port.inbound.statistics.SubCategoryTaskRequestUsecase;
 import clap.server.common.annotation.architecture.WebAdapter;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -16,7 +17,7 @@ public class StatisticsFindController {
     private final PeriodTaskRequestUsecase periodTaskRequestUsecase;
     private final PeriodTaskProcessUsecase periodTaskProcessUsecase;
     private final CategoryTaskRequestUsecase categoryTaskRequestUsecase;
-//    private final SubCategoryTaskRequestUsecase subCategoryTaskRequestUsecase;
+    private final SubCategoryTaskRequestUsecase subCategoryTaskRequestUsecase;
 //    private final ManagerTaskProcessUsecase managerTaskProcessUsecase;
 
     @GetMapping(value = "/task/statistics/task-requests-by-period")
@@ -33,7 +34,9 @@ public Map<String, Long> aggregateCategoryTaskRequest(@RequestParam String perio
         return categoryTaskRequestUsecase.categoryTaskRequestAggregate(period);
     }
 
-//    @GetMapping("/task/statistics/task-requests-by-subcategory")
-//
+    @GetMapping("/task/statistics/task-requests-by-subcategory")
+    public Map<String, Long> aggregateSubCategoryTaskRequest(@RequestParam String period, @RequestParam String mainCategory) {
+        return subCategoryTaskRequestUsecase.subCategoryTaskRequestAggregate(period, mainCategory);
+    }
 //    @GetMapping("/task/statistics/tasks-processed-by-manager")
 }
\ No newline at end of file
diff --git a/src/main/java/clap/server/adapter/outbound/infrastructure/elastic/ElasticTaskAdapter.java b/src/main/java/clap/server/adapter/outbound/infrastructure/elastic/ElasticTaskAdapter.java
index 698b19a8..ef5bee3e 100644
--- a/src/main/java/clap/server/adapter/outbound/infrastructure/elastic/ElasticTaskAdapter.java
+++ b/src/main/java/clap/server/adapter/outbound/infrastructure/elastic/ElasticTaskAdapter.java
@@ -52,6 +52,14 @@ public Map<String, Long> findCategoryTaskRequestByPeriod(String period) {
         return getCategoryTaskResults(executeQuery(query));
     }
 
+    @Override
+    public Map<String, Long> findSubCategoryTaskRequestByPeriod(String period, String mainCategory) {
+        PeriodConfig periodConfig = PeriodConfig.valueOf(period.toUpperCase());
+
+        NativeQuery query = buildSubCategoryTaskRequestQuery(periodConfig, mainCategory);
+        return getCategoryTaskResults(executeQuery(query));
+    }
+
     private NativeQuery buildPeriodTaskRequestQuery(PeriodConfig config) {
         return NativeQuery.builder()
                 .withQuery(q -> q
@@ -107,6 +115,31 @@ private NativeQuery buildCategoryTaskRequestQuery(PeriodConfig config) {
                 .build();
     }
 
+    private NativeQuery buildSubCategoryTaskRequestQuery(PeriodConfig config, String mainCategory) {
+        NativeQuery rangeQuery = NativeQuery.builder()
+                .withQuery(q -> q
+                        .range(r -> r
+                                .date(d -> d
+                                        .field("created_at")
+                                        .gte(String.valueOf(LocalDate.now().minusDays(config.getDaysToSubtract())))))).build();
+        NativeQuery categoryQuery = NativeQuery.builder()
+                .withQuery(q -> q
+                        .term(v -> v
+                                .field("main_category")
+                                .value(mainCategory))).build();
+
+        return NativeQuery.builder()
+                .withQuery(q -> q
+                        .bool(b -> b
+                                .must(rangeQuery.getQuery(), categoryQuery.getQuery()))
+                )
+                .withAggregation("category_task", AggregationBuilders.terms()
+                        .field("sub_category")
+                        .build()._toAggregation())
+                .withMaxResults(0)
+                .build();
+    }
+
     private ElasticsearchAggregations executeQuery(NativeQuery query) {
         return (ElasticsearchAggregations) elasticsearchOperations
                 .search(query, ElasticTask.class)
diff --git a/src/main/java/clap/server/application/port/inbound/statistics/SubCategoryTaskRequestUsecase.java b/src/main/java/clap/server/application/port/inbound/statistics/SubCategoryTaskRequestUsecase.java
new file mode 100644
index 00000000..acb2dfa2
--- /dev/null
+++ b/src/main/java/clap/server/application/port/inbound/statistics/SubCategoryTaskRequestUsecase.java
@@ -0,0 +1,7 @@
+package clap.server.application.port.inbound.statistics;
+
+import java.util.Map;
+
+public interface SubCategoryTaskRequestUsecase {
+    Map<String, Long> subCategoryTaskRequestAggregate(String period, String mainCategory);
+}
diff --git a/src/main/java/clap/server/application/port/outbound/task/ElasticTaskPort.java b/src/main/java/clap/server/application/port/outbound/task/ElasticTaskPort.java
index 21d9feb8..0778c8ac 100644
--- a/src/main/java/clap/server/application/port/outbound/task/ElasticTaskPort.java
+++ b/src/main/java/clap/server/application/port/outbound/task/ElasticTaskPort.java
@@ -13,4 +13,6 @@ public interface ElasticTaskPort {
     Map<String, Long> findPeriodTaskProcessByPeriod(String period);
 
     Map<String, Long> findCategoryTaskRequestByPeriod(String period);
+
+    Map<String, Long> findSubCategoryTaskRequestByPeriod(String period, String mainCategory);
 }
diff --git a/src/main/java/clap/server/application/statistics/SubCategoryTaskRequestService.java b/src/main/java/clap/server/application/statistics/SubCategoryTaskRequestService.java
new file mode 100644
index 00000000..fa57c48d
--- /dev/null
+++ b/src/main/java/clap/server/application/statistics/SubCategoryTaskRequestService.java
@@ -0,0 +1,19 @@
+package clap.server.application.statistics;
+
+import clap.server.application.port.inbound.statistics.SubCategoryTaskRequestUsecase;
+import clap.server.application.port.outbound.task.ElasticTaskPort;
+import clap.server.common.annotation.architecture.ApplicationService;
+import lombok.RequiredArgsConstructor;
+
+import java.util.Map;
+
+@ApplicationService
+@RequiredArgsConstructor
+public class SubCategoryTaskRequestService implements SubCategoryTaskRequestUsecase {
+    private final ElasticTaskPort elasticTaskPort;
+
+    @Override
+    public Map<String, Long> subCategoryTaskRequestAggregate(String period, String mainCategory) {
+        return elasticTaskPort.findSubCategoryTaskRequestByPeriod(period, mainCategory);
+    }
+}