diff --git a/resources/views/sales/price-simulator/index.blade.php b/resources/views/sales/price-simulator/index.blade.php
index 5e3c0ba0..2c05ca96 100644
--- a/resources/views/sales/price-simulator/index.blade.php
+++ b/resources/views/sales/price-simulator/index.blade.php
@@ -615,13 +615,30 @@ class="w-4 h-4 rounded border-gray-300 text-emerald-600 focus:ring-emerald-500">
                 </label>
             </div>
 
-            {{-- 카테고리별 상품 목록 --}}
+            {{-- 업종 카테고리 선택 --}}
+            <div class="bg-white rounded-xl shadow-sm p-5 mb-4">
+                <h3 class="text-sm font-semibold text-gray-700 mb-3">업종 선택</h3>
+                <div class="flex gap-3">
+                    @foreach($categories as $category)
+                    <div class="flex-1 cursor-pointer p-4 border-2 rounded-xl text-center transition-all"
+                         :class="selectedCategoryId === {{ $category->id }}
+                             ? 'border-blue-600 bg-blue-600 shadow-lg shadow-blue-200'
+                             : 'border-gray-200 bg-white hover:border-gray-300'"
+                         x-on:click="selectCategory({{ $category->id }})">
+                        <div class="font-semibold" :class="selectedCategoryId === {{ $category->id }} ? 'text-white' : 'text-gray-900'">{{ $category->name }}</div>
+                        <div class="text-xs mt-1" :class="selectedCategoryId === {{ $category->id }} ? 'text-blue-100' : 'text-gray-500'">{{ $category->products->count() }}개 상품 / {{ $category->base_storage }}</div>
+                    </div>
+                    @endforeach
+                </div>
+            </div>
+
+            {{-- 선택된 카테고리의 상품 목록 --}}
             @foreach($categories as $category)
-            <div class="bg-white rounded-xl shadow-sm mb-4 overflow-hidden">
+            <div x-show="selectedCategoryId === {{ $category->id }}" class="bg-white rounded-xl shadow-sm mb-4 overflow-hidden">
                 <div class="px-5 py-4 border-b border-gray-100 flex items-center justify-between">
                     <div>
-                        <h3 class="font-semibold text-gray-900">{{ $category->name }}</h3>
-                        <p class="text-xs text-gray-500">기본 제공: {{ $category->base_storage }}</p>
+                        <h3 class="font-semibold text-gray-900">{{ $category->name }} 상품</h3>
+                        <p class="text-xs text-gray-500">필요한 상품을 체크하세요</p>
                     </div>
                     <span class="text-xs px-2 py-1 rounded-full bg-gray-100 text-gray-500">
                         {{ $category->products->count() }}개 상품
@@ -638,7 +655,7 @@ class="w-4 h-4 rounded border-gray-300 text-emerald-600 focus:ring-emerald-500">
                                        :checked="isSelected({{ $product->id }})"
                                        x-on:change="toggleProduct({{ $product->id }})"
                                        class="w-4 h-4 rounded border-gray-300 text-emerald-600 focus:ring-emerald-500"
-                                       @if($product->is_required) checked disabled @endif>
+                                       @if($product->is_required) :disabled="isSelected({{ $product->id }})" @endif>
                             </label>
                             <div class="flex-1 min-w-0">
                                 <div class="flex items-center gap-2">
@@ -865,25 +882,36 @@ function priceSimulator() {
         });
     });
 
-    // 필수 상품 ID 수집
-    const requiredIds = Object.values(productMap)
-        .filter(p => p.is_required)
-        .map(p => p.id);
+    // 카테고리별 필수 상품 선택 세트 생성
+    function buildRequiredSelected(catId) {
+        const result = {};
+        Object.values(productMap)
+            .filter(p => p.categoryId === catId && p.is_required)
+            .forEach(p => {
+                result[p.id] = {
+                    adjustedFee: Number(p.registration_fee) || Math.floor(Number(p.development_fee) * 0.25),
+                };
+            });
+        return result;
+    }
 
-    // 초기 선택 상태: 필수 상품은 기본 선택 + 기본 가입비 적용
-    const initialSelected = {};
-    requiredIds.forEach(id => {
-        const p = productMap[id];
-        initialSelected[id] = {
-            adjustedFee: Number(p.registration_fee) || Math.floor(Number(p.development_fee) * 0.25),
-        };
-    });
+    // 첫 번째 카테고리를 기본 선택
+    const firstCategoryId = categoriesData.length > 0 ? categoriesData[0].id : null;
 
     return {
         showHelp: false,
         signupType: 'individual',
         hasReferrer: false,
-        selected: { ...initialSelected },
+        selectedCategoryId: firstCategoryId,
+        selected: buildRequiredSelected(firstCategoryId),
+
+        // --- 카테고리 선택 (상호 배타) ---
+        selectCategory(catId) {
+            if (this.selectedCategoryId === catId) return;
+            this.selectedCategoryId = catId;
+            // 전체 초기화 후 새 카테고리의 필수 상품만 선택
+            this.selected = buildRequiredSelected(catId);
+        },
 
         // --- 상품 선택/해제 ---
         isSelected(id) {
@@ -893,7 +921,10 @@ function priceSimulator() {
         toggleProduct(id) {
             const p = productMap[id];
             if (!p) return;
-            if (p.is_required) return; // 필수 상품은 해제 불가
+            // 현재 카테고리 상품만 토글 가능
+            if (p.categoryId !== this.selectedCategoryId) return;
+            // 필수 상품은 해제 불가
+            if (p.is_required && this.isSelected(id)) return;
 
             if (this.isSelected(id)) {
                 const copy = { ...this.selected };
@@ -1029,7 +1060,8 @@ function priceSimulator() {
         resetAll() {
             this.signupType = 'individual';
             this.hasReferrer = false;
-            this.selected = { ...initialSelected };
+            this.selectedCategoryId = firstCategoryId;
+            this.selected = buildRequiredSelected(firstCategoryId);
         },
     };
 }