diff --git a/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryLotLineRepository.kt b/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryLotLineRepository.kt
index b5c6711..1ab7b17 100644
--- a/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryLotLineRepository.kt
+++ b/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryLotLineRepository.kt
@@ -52,6 +52,14 @@ interface InventoryLotLineRepository : AbstractRepository<InventoryLotLine, Long
     AND ill.deleted = false
     """)
     fun findByLotNoAndItemId(lotNo: String, itemId: Long): InventoryLotLine?
+
+    @Query("""
+        SELECT DISTINCT ill.inventoryLot.item.id
+        FROM InventoryLotLine ill
+        WHERE ill.deleted = false
+          AND ill.inventoryLot.lotNo = :lotNo
+    """)
+    fun findDistinctItemIdsByLotNo(@Param("lotNo") lotNo: String): List<Long>
     // InventoryLotLineRepository.kt 中添加
 @Query("SELECT ill FROM InventoryLotLine ill WHERE ill.warehouse.id IN :warehouseIds AND ill.deleted = false")
 fun findAllByWarehouseIdInAndDeletedIsFalse(@Param("warehouseIds") warehouseIds: List<Long>): List<InventoryLotLine>
diff --git a/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryRepository.kt b/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryRepository.kt
index 16598df..8b907a8 100644
--- a/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryRepository.kt
+++ b/src/main/java/com/ffii/fpsms/modules/stock/entity/InventoryRepository.kt
@@ -21,6 +21,20 @@ interface InventoryRepository: AbstractRepository<Inventory, Long> {
             "AND i.deleted = false")
     fun findInventoryInfoByItemCodeContainsAndItemNameContainsAndItemTypeAndDeletedIsFalse(code: String, name: String, type: String, pageable: Pageable): Page<InventoryInfo>
 
+    @Query("SELECT i FROM Inventory i " +
+            "WHERE (:code IS NULL OR i.item.code LIKE CONCAT('%', :code, '%')) " +
+            "AND (:name IS NULL OR i.item.name LIKE CONCAT('%', :name, '%')) " +
+            "AND (:type IS NULL OR :type = '' OR i.item.type = :type) " +
+            "AND i.item.id IN :itemIds " +
+            "AND i.deleted = false")
+    fun findInventoryInfoByItemCodeContainsAndItemNameContainsAndItemTypeAndItemIdInAndDeletedIsFalse(
+        code: String,
+        name: String,
+        type: String,
+        itemIds: List<Long>,
+        pageable: Pageable
+    ): Page<InventoryInfo>
+
     fun findInventoryInfoByItemIdInAndDeletedIsFalse(itemIds: List<Serializable>): List<InventoryInfo>
 
     fun findInventoryInfoByItemInAndDeletedIsFalse(items: List<Items>): List<InventoryInfo>
diff --git a/src/main/java/com/ffii/fpsms/modules/stock/service/InventoryService.kt b/src/main/java/com/ffii/fpsms/modules/stock/service/InventoryService.kt
index 9dd6fcb..84ff44c 100644
--- a/src/main/java/com/ffii/fpsms/modules/stock/service/InventoryService.kt
+++ b/src/main/java/com/ffii/fpsms/modules/stock/service/InventoryService.kt
@@ -59,13 +59,28 @@ open class InventoryService(
 
     open fun allInventoriesByPage(request: SearchInventoryRequest): RecordsRes<InventoryInfo>{
         val pageable = PageRequest.of(request.pageNum ?: 0, request.pageSize ?: 10)
+        val lotNo = request.lotNo?.trim()?.takeIf { it.isNotEmpty() }
 
-        val response = inventoryRepository.findInventoryInfoByItemCodeContainsAndItemNameContainsAndItemTypeAndDeletedIsFalse(
-            code = request.code,
-            name = request.name,
-            type = request.type,
-            pageable = pageable
-        )
+        val response = if (lotNo != null) {
+            val itemIds = inventoryLotLineRepository.findDistinctItemIdsByLotNo(lotNo)
+            if (itemIds.isEmpty()) {
+                return RecordsRes(emptyList(), 0)
+            }
+            inventoryRepository.findInventoryInfoByItemCodeContainsAndItemNameContainsAndItemTypeAndItemIdInAndDeletedIsFalse(
+                code = request.code,
+                name = request.name,
+                type = request.type,
+                itemIds = itemIds,
+                pageable = pageable
+            )
+        } else {
+            inventoryRepository.findInventoryInfoByItemCodeContainsAndItemNameContainsAndItemTypeAndDeletedIsFalse(
+                code = request.code,
+                name = request.name,
+                type = request.type,
+                pageable = pageable
+            )
+        }
 
         val records = response.content
         val total = response.totalElements
diff --git a/src/main/java/com/ffii/fpsms/modules/stock/web/model/SearchInventoryRequest.kt b/src/main/java/com/ffii/fpsms/modules/stock/web/model/SearchInventoryRequest.kt
index 4f473a6..c40dcb4 100644
--- a/src/main/java/com/ffii/fpsms/modules/stock/web/model/SearchInventoryRequest.kt
+++ b/src/main/java/com/ffii/fpsms/modules/stock/web/model/SearchInventoryRequest.kt
@@ -4,6 +4,7 @@ data class SearchInventoryRequest(
     val code: String,
     val name: String,
     val type: String,
+    val lotNo: String? = null,
     val pageNum: Int?,
     val pageSize: Int?
 )