diff --git a/src/pages/product/ProductStockDetail.vue b/src/pages/product/ProductStockDetail.vue
index aa18307..279c689 100644
--- a/src/pages/product/ProductStockDetail.vue
+++ b/src/pages/product/ProductStockDetail.vue
@@ -9,6 +9,13 @@
 				</template>
 			</product-profile>
 			<t-cell-group theme="card" title="库存" v-entrance-transition="70">
+				<t-cell
+					v-if="1 < unitList.length"
+					title="显示单位"
+					:note="selectedUnitName"
+					arrow
+					@click="openUnitPicker"
+				/>
 				<t-cell class="empty-cell-title-margin">
 					<template #title>
 						<span></span>
@@ -18,20 +25,20 @@
 							<div class="main">
 								<span class="label">库存</span>
 								<div class="value">
-									<strong class="text" v-text="getProductQuantityText(stock.onHandQuantity)" />
-									<span class="unit" v-text="getProductBaseUnitName(sku) || '基础单位'" />
+									<strong class="text" v-text="displayStock.onHandQuantity" />
+									<span class="unit" v-text="selectedUnitName" />
 								</div>
 							</div>
 							<div class="footer">
 								<div class="available">
 									<span class="label">可用</span>
-									<strong class="value" v-text="getProductQuantityText(stock.availableQuantity)" />
-									<span class="unit" v-text="getProductBaseUnitName(sku) || '基础单位'" />
+									<strong class="value" v-text="displayStock.availableQuantity" />
+									<span class="unit" v-text="selectedUnitName" />
 								</div>
 								<div class="reserved">
 									<span class="label">预占</span>
-									<strong class="value" v-text="getProductQuantityText(stock.reservedQuantity)" />
-									<span class="unit" v-text="getProductBaseUnitName(sku) || '基础单位'" />
+									<strong class="value" v-text="displayStock.reservedQuantity" />
+									<span class="unit" v-text="selectedUnitName" />
 								</div>
 							</div>
 						</div>
@@ -74,22 +81,33 @@
 			:operation="operationType"
 			@success="loadAll"
 		/>
+		<t-popup v-model="unitPickerVisible" placement="bottom">
+			<t-picker
+				v-model="unitPickerDraft"
+				:columns="unitPickerOptions"
+				title="选择库存展示单位"
+				@cancel="unitPickerVisible = false"
+				@confirm="confirmUnit"
+			/>
+		</t-popup>
 	</div>
 </template>
 
 <script setup lang="ts">
+import { shallowRef } from "vue";
 import { useUserStore } from "timi-web-api";
 import ProductAPI from "@/api/ProductAPI";
 import ProductProfile from "@/pages/product/component/ProductProfile.vue";
 import ProductStockOperationPopup from "@/pages/product/ProductStockOperationPopup.vue";
 import { useNavBarStore } from "@/store/navBarStore";
-import type { Product, ProductSku, ProductStock, StockOperationType } from "@/types/Product";
+import type { Product, ProductSku, ProductStock, ProductSkuUnit, StockOperationType } from "@/types/Product";
 import { getErrorMessage } from "@/utils/error";
-import { getProductBaseUnitName, getProductQuantityText } from "@/utils/product";
+import { convertBaseQuantityToPackageQuantity } from "@/utils/package";
 import { Message } from "@/utils/message";
 import { permissionCodes } from "@/utils/permission";
 
 type ManualStockOperation = Extract<StockOperationType, "MANUAL_IN" | "MANUAL_OUT" | "STOCKTAKE_GAIN" | "STOCKTAKE_LOSS">;
+type PickerValue = string | number;
 
 defineOptions({ name: "ProductStockDetail" });
 
@@ -103,7 +121,21 @@ const stock = ref<ProductStock>();
 const isLoading = ref(false);
 const operationVisible = ref(false);
 const operationType = ref<ManualStockOperation>("MANUAL_IN");
+const selectedUnitId = shallowRef("");
+const unitPickerVisible = shallowRef(false);
+const unitPickerDraft = ref<PickerValue[]>([]);
 const canOperate = computed(() => userStore.hasPermissions(permissionCodes.productStock.create));
+const unitList = computed(() => (sku.value?.unitList || []).filter(unit => !!unit.id));
+const selectedUnit = computed<ProductSkuUnit | undefined>(() => unitList.value.find(unit => unit.id === selectedUnitId.value)
+	|| unitList.value.find(unit => unit.isBase)
+	|| unitList.value[0]);
+const selectedUnitName = computed(() => selectedUnit.value?.name || "基础单位");
+const unitPickerOptions = computed(() => [unitList.value.map(unit => ({ label: unit.name || "未命名单位", value: unit.id || "" }))]);
+const displayStock = computed(() => ({
+	onHandQuantity: getStockQuantityText(stock.value?.onHandQuantity),
+	availableQuantity: getStockQuantityText(stock.value?.availableQuantity),
+	reservedQuantity: getStockQuantityText(stock.value?.reservedQuantity)
+}));
 const operationList: Array<{ text: string; icon: string; type: ManualStockOperation; theme: "primary" | "danger" }> = [
 	{ text: "手工入库", icon: "import", type: "MANUAL_IN", theme: "primary" },
 	{ text: "手工出库", icon: "export", type: "MANUAL_OUT", theme: "danger" },
@@ -129,6 +161,34 @@ function getStockTheme(item: ProductStock): "danger" | "success" | "default" {
 	return 0 < min && available < min ? "danger" : "success";
 }
 
+function getStockQuantityText(value?: number | string): string {
+	return convertBaseQuantityToPackageQuantity(value ?? "0", selectedUnit.value?.baseQuantityPerUnit ?? "1") || "0";
+}
+
+function setDefaultUnit(nextSku: ProductSku): void {
+	const nextUnitList = nextSku.unitList || [];
+	if (selectedUnitId.value && nextUnitList.some(unit => unit.id === selectedUnitId.value)) {
+		return;
+	}
+	selectedUnitId.value = nextUnitList.find(unit => unit.isBase)?.id || nextUnitList[0]?.id || "";
+}
+
+function openUnitPicker(): void {
+	if (1 >= unitList.value.length) {
+		return;
+	}
+	unitPickerDraft.value = [selectedUnit.value?.id || ""];
+	unitPickerVisible.value = true;
+}
+
+function confirmUnit(value: PickerValue[]): void {
+	const unitId = String(value[0] || "");
+	if (unitList.value.some(unit => unit.id === unitId)) {
+		selectedUnitId.value = unitId;
+	}
+	unitPickerVisible.value = false;
+}
+
 async function loadAll(): Promise<void> {
 	const skuId = String(route.params.skuId || "");
 	if (!skuId) {
@@ -143,6 +203,7 @@ async function loadAll(): Promise<void> {
 		]);
 		product.value = productResult;
 		sku.value = skuResult;
+		setDefaultUnit(skuResult);
 		stock.value = { ...stockResult, sku: skuResult };
 	} finally {
 		isLoading.value = false;