diff --git a/op-modules/op-device/src/main/java/com/op/device/mapper/SparePartsLedgerMapper.java b/op-modules/op-device/src/main/java/com/op/device/mapper/SparePartsLedgerMapper.java
index 70d7de075..2714af72d 100644
--- a/op-modules/op-device/src/main/java/com/op/device/mapper/SparePartsLedgerMapper.java
+++ b/op-modules/op-device/src/main/java/com/op/device/mapper/SparePartsLedgerMapper.java
@@ -3,6 +3,7 @@ package com.op.device.mapper;
 import java.math.BigDecimal;
 import java.util.List;
 
+import com.op.device.domain.EquSpareApply;
 import com.op.device.domain.SparePartsLedger;
 
 /**
@@ -67,4 +68,9 @@ public interface SparePartsLedgerMapper {
 	 */
 	BigDecimal selectRealAmountByMaterialCode(String materialCode);
 
+	/**
+	 * 减少库存数量
+	 * @param apply
+	 */
+	void updateSpareNumReduce(EquSpareApply apply);
 }
diff --git a/op-modules/op-device/src/main/resources/mapper/device/SparePartsLedgerMapper.xml b/op-modules/op-device/src/main/resources/mapper/device/SparePartsLedgerMapper.xml
index 336af1e00..0ceedf67a 100644
--- a/op-modules/op-device/src/main/resources/mapper/device/SparePartsLedgerMapper.xml
+++ b/op-modules/op-device/src/main/resources/mapper/device/SparePartsLedgerMapper.xml
@@ -280,6 +280,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 		where storage_id = #{storageId}
 	</update>
 
+	<update id="updateSpareNumReduce">
+		update wms_ods_mate_storage_news
+		set amount = ( amount - #{spareQuantity} ) where material_code = #{spareCode}
+	</update>
+
 	<delete id="deleteSparePartsLedgerByStorageId" parameterType="String">
 		delete from wms_ods_mate_storage_news where storage_id = #{storageId}
 	</delete>