diff --git a/src/component/ai_explore/DistanceSlider.tsx b/src/component/ai_explore/DistanceSlider.tsx
new file mode 100644
index 0000000..b996a96
--- /dev/null
+++ b/src/component/ai_explore/DistanceSlider.tsx
@@ -0,0 +1,67 @@
+import { useMemo } from 'react';
+import { cn } from '@/utils/cn';
+
+type Props = {
+  min?: number;
+  max?: number;
+  step?: number;
+  value: number | null;
+  onChange: (v: number) => void;
+  className?: string;
+};
+
+export default function DistanceSlider({
+  min = 1,
+  max = 50,
+  step = 1,
+  value,
+  onChange,
+  className,
+}: Props) {
+  const safeValue = value ?? min;
+  const percent = useMemo(
+    () => Math.round(((safeValue - min) / (max - min)) * 100),
+    [safeValue, min, max],
+  );
+  return (
+    <div className={cn('w-full', className)}>
+      <div className="flex items-baseline justify-between">
+        <span className="text-title1 text-green1">거리(km)</span>
+        <span className="text-title1 text-green1">
+          {value === null ? `N km` : `${safeValue}km`}
+        </span>
+      </div>
+      <div className="text-caption4 text-green1 mt-3 flex justify-between">
+        <span>{min}</span>
+        <span>{max}</span>
+      </div>
+      <div className="relative h-6">
+        <div className="bg-gray2 pointer-events-none absolute top-1/2 right-0 left-0 h-2 -translate-y-1/2 rounded-full" />
+        <div
+          className="bg-yellow1 pointer-events-none absolute top-1/2 left-0 h-2 -translate-y-1/2 rounded-full"
+          style={{ width: `${percent}%` }}
+        />
+        {/*노브*/}
+        <div
+          className="pointer-events-none absolute top-1/2 -translate-y-1/2"
+          style={{ left: `calc(${percent}% - 10px)` }}
+        >
+          <div className="flex h-5 w-5 items-center justify-center rounded-full bg-white shadow-[0_3px_5px_rgba(0,0,0,0.25)] ring-2 ring-white">
+            <span className="bg-yellow1 block h-2.5 w-2.5 rounded-full" />
+          </div>
+        </div>
+
+        <input
+          type="range"
+          min={min}
+          max={max}
+          step={step}
+          value={safeValue}
+          onChange={(e) => onChange(Number(e.target.value))}
+          aria-label="거리 (km)"
+          className="absolute inset-0 w-full cursor-pointer opacity-0"
+        />
+      </div>
+    </div>
+  );
+}
diff --git a/src/pages/ai/MainAI.tsx b/src/pages/ai/MainAI.tsx
index 747e54e..80612cf 100644
--- a/src/pages/ai/MainAI.tsx
+++ b/src/pages/ai/MainAI.tsx
@@ -2,22 +2,28 @@ import { useMemo, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { LabeledInput, Button, Header, Sidebar } from '@/component';
 import { useAIExploreStore } from '@/stores/useAIExploreStore';
+import DistanceSlider from '@/component/ai_explore/DistanceSlider';
 
 export default function AiExplorePage() {
   const navigate = useNavigate();
   const address = useAIExploreStore((s) => s.address);
   const theme = useAIExploreStore((s) => s.theme);
+  const distanceKm = useAIExploreStore((s) => s.distanceKm);
   const setAddress = useAIExploreStore((s) => s.setAddress);
+  const setDistanceKm = useAIExploreStore((s) => s.setDistanceKm);
 
-  const isReady = useMemo(() => !!address && !!theme?.subs.length, [address, theme]);
+  const isReady = useMemo(
+    () => !!address && !!theme?.subs.length && distanceKm !== null,
+    [address, theme, distanceKm],
+  );
 
   const fillSampleAddress = () => {
     setAddress('경기도 성남시 수정구 성남대로 1342 이렇게 길어지면'); // UI 확인용입니당... 추후 API 연결
   };
 
-  const goThemeSelect = () => navigate('/explore/theme'); // ← 쿼리/state 없이 이동
+  const goThemeSelect = () => navigate('/explore/theme');
 
-  const startSearch = () => navigate('/explore/result'); // ← 결과 페이지에서 AI 호출
+  const startSearch = () => navigate('/explore/result');
 
   const [isSidebarOpen, setIsSidebarOpen] = useState(false);
 
@@ -56,6 +62,8 @@ export default function AiExplorePage() {
               onClick={goThemeSelect}
             />
 
+            <DistanceSlider value={distanceKm} onChange={setDistanceKm} />
+
             <div className="fixed right-0 bottom-[10px] left-0 z-10 mx-auto w-full max-w-[430px] px-10 pt-4 pb-6">
               <Button
                 variant="lg"
diff --git a/src/pages/ai/ThemeSelect.tsx b/src/pages/ai/ThemeSelect.tsx
index ff7fa4b..489cbd9 100644
--- a/src/pages/ai/ThemeSelect.tsx
+++ b/src/pages/ai/ThemeSelect.tsx
@@ -16,13 +16,16 @@ const ThemeSelcetPage = () => {
 
   const done = () => {
     setTheme({ main, subs });
-    navigate('/explore');
+    navigate('/explore', { replace: true });
   };
 
   return (
     <div className="min-h-screen">
       <div className="bg-green3-light relative h-10 w-full">
-        <button onClick={() => navigate(-1)} className="absolute top-1/2 -translate-y-1/2 pl-4">
+        <button
+          onClick={() => navigate('/explore', { replace: true })}
+          className="absolute top-1/2 -translate-y-1/2 pl-4"
+        >
           <ArrowLeft className="w-4" />
         </button>
         <span className="text-caption3 text-green1 absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2">
diff --git a/src/stores/useAIExploreStore.ts b/src/stores/useAIExploreStore.ts
index 59aa470..c7b1cae 100644
--- a/src/stores/useAIExploreStore.ts
+++ b/src/stores/useAIExploreStore.ts
@@ -5,15 +5,19 @@ export type ThemeGroup = { main: string; subs: string[] };
 type ExploreState = {
   address: string;
   theme: ThemeGroup | null;
+  distanceKm: number | null;
   setAddress: (v: string) => void;
   setTheme: (v: ThemeGroup | null) => void;
+  setDistanceKm: (v: number | null) => void;
   reset: () => void;
 };
 
 export const useAIExploreStore = create<ExploreState>((set) => ({
   address: '',
   theme: null,
+  distanceKm: null,
   setAddress: (v) => set({ address: v }),
   setTheme: (v) => set({ theme: v }),
-  reset: () => set({ address: '', theme: null }),
+  setDistanceKm: (v) => set({ distanceKm: v }),
+  reset: () => set({ address: '', theme: null, distanceKm: null }),
 }));