diff --git a/src/main/java/org/springblade/modules/martial/service/IScheduleExportService.java b/src/main/java/org/springblade/modules/martial/service/IScheduleExportService.java
new file mode 100644
index 0000000..cf93e2e
--- /dev/null
+++ b/src/main/java/org/springblade/modules/martial/service/IScheduleExportService.java
@@ -0,0 +1,17 @@
+package org.springblade.modules.martial.service;
+
+import org.springblade.modules.martial.excel.ScheduleExportExcel;
+import org.springblade.modules.martial.excel.ScheduleExportExcel2;
+
+import java.util.List;
+
+/**
+ * Schedule Export Service
+ * Phase 2, Step 2.2: Extract export logic
+ */
+public interface IScheduleExportService {
+    
+    List<ScheduleExportExcel> exportSchedule(Long competitionId);
+    
+    List<ScheduleExportExcel2> exportScheduleTemplate2(Long competitionId, Long venueId);
+}