diff --git a/backend/src/main/java/com/openisle/controller/PointHistoryController.java b/backend/src/main/java/com/openisle/controller/PointHistoryController.java
index a547d309a..1a4235e3a 100644
--- a/backend/src/main/java/com/openisle/controller/PointHistoryController.java
+++ b/backend/src/main/java/com/openisle/controller/PointHistoryController.java
@@ -7,9 +7,11 @@ import lombok.RequiredArgsConstructor;
 import org.springframework.security.core.Authentication;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
+import java.util.Map;
 import java.util.stream.Collectors;
 
 @RestController
@@ -25,4 +27,10 @@ public class PointHistoryController {
                 .map(pointHistoryMapper::toDto)
                 .collect(Collectors.toList());
     }
+
+    @GetMapping("/trend")
+    public List<Map<String, Object>> trend(Authentication auth,
+                                          @RequestParam(value = "days", defaultValue = "30") int days) {
+        return pointService.trend(auth.getName(), days);
+    }
 }
diff --git a/backend/src/main/java/com/openisle/repository/PointHistoryRepository.java b/backend/src/main/java/com/openisle/repository/PointHistoryRepository.java
index ac1ee7096..ac62b7df3 100644
--- a/backend/src/main/java/com/openisle/repository/PointHistoryRepository.java
+++ b/backend/src/main/java/com/openisle/repository/PointHistoryRepository.java
@@ -4,9 +4,12 @@ import com.openisle.model.PointHistory;
 import com.openisle.model.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.time.LocalDateTime;
 import java.util.List;
 
 public interface PointHistoryRepository extends JpaRepository<PointHistory, Long> {
     List<PointHistory> findByUserOrderByIdDesc(User user);
     long countByUser(User user);
+
+    List<PointHistory> findByUserAndCreatedAtAfterOrderByCreatedAtDesc(User user, LocalDateTime createdAt);
 }
diff --git a/backend/src/main/java/com/openisle/service/PointService.java b/backend/src/main/java/com/openisle/service/PointService.java
index 2e5fa48b7..086f2c7a9 100644
--- a/backend/src/main/java/com/openisle/service/PointService.java
+++ b/backend/src/main/java/com/openisle/service/PointService.java
@@ -7,6 +7,10 @@ import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
 
 @Service
 @RequiredArgsConstructor
@@ -173,4 +177,25 @@ public class PointService {
         return pointHistoryRepository.findByUserOrderByIdDesc(user);
     }
 
+    public List<Map<String, Object>> trend(String userName, int days) {
+        if (days < 1) days = 1;
+        User user = userRepository.findByUsername(userName).orElseThrow();
+        LocalDate end = LocalDate.now();
+        LocalDate start = end.minusDays(days - 1L);
+        var histories = pointHistoryRepository.findByUserAndCreatedAtAfterOrderByCreatedAtDesc(
+                user, start.atStartOfDay());
+        int idx = 0;
+        int balance = user.getPoint();
+        List<Map<String, Object>> result = new ArrayList<>();
+        for (LocalDate day = end; !day.isBefore(start); day = day.minusDays(1)) {
+            result.add(Map.of("date", day.toString(), "value", balance));
+            while (idx < histories.size() && histories.get(idx).getCreatedAt().toLocalDate().isEqual(day)) {
+                balance -= histories.get(idx).getAmount();
+                idx++;
+            }
+        }
+        Collections.reverse(result);
+        return result;
+    }
+
 }
diff --git a/backend/src/test/java/com/openisle/controller/PointHistoryControllerTest.java b/backend/src/test/java/com/openisle/controller/PointHistoryControllerTest.java
new file mode 100644
index 000000000..ca28563cf
--- /dev/null
+++ b/backend/src/test/java/com/openisle/controller/PointHistoryControllerTest.java
@@ -0,0 +1,65 @@
+package com.openisle.controller;
+
+import com.openisle.config.CustomAccessDeniedHandler;
+import com.openisle.config.SecurityConfig;
+import com.openisle.service.PointService;
+import com.openisle.mapper.PointHistoryMapper;
+import com.openisle.service.JwtService;
+import com.openisle.repository.UserRepository;
+import com.openisle.model.User;
+import com.openisle.model.Role;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.annotation.Import;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@WebMvcTest(PointHistoryController.class)
+@AutoConfigureMockMvc
+@Import({SecurityConfig.class, CustomAccessDeniedHandler.class})
+class PointHistoryControllerTest {
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private JwtService jwtService;
+    @MockBean
+    private UserRepository userRepository;
+    @MockBean
+    private PointService pointService;
+    @MockBean
+    private PointHistoryMapper pointHistoryMapper;
+
+    @Test
+    void trendReturnsSeries() throws Exception {
+        Mockito.when(jwtService.validateAndGetSubject("token")).thenReturn("user");
+        User user = new User();
+        user.setUsername("user");
+        user.setPassword("p");
+        user.setEmail("u@example.com");
+        user.setRole(Role.USER);
+        Mockito.when(userRepository.findByUsername("user")).thenReturn(Optional.of(user));
+        List<Map<String, Object>> data = List.of(
+                Map.of("date", java.time.LocalDate.now().minusDays(1).toString(), "value", 100),
+                Map.of("date", java.time.LocalDate.now().toString(), "value", 110)
+        );
+        Mockito.when(pointService.trend(Mockito.eq("user"), Mockito.anyInt())).thenReturn(data);
+
+        mockMvc.perform(get("/api/point-histories/trend").param("days", "2")
+                        .header("Authorization", "Bearer token"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$[0].value").value(100))
+                .andExpect(jsonPath("$[1].value").value(110));
+    }
+}
diff --git a/frontend_nuxt/pages/about/stats.vue b/frontend_nuxt/pages/about/stats.vue
index 7b881d67d..331680de1 100644
--- a/frontend_nuxt/pages/about/stats.vue
+++ b/frontend_nuxt/pages/about/stats.vue
@@ -33,23 +33,11 @@
 </template>
 
 <script setup>
-import { LineChart } from 'echarts/charts'
-import {
-  DataZoomComponent,
-  GridComponent,
-  TitleComponent,
-  TooltipComponent,
-} from 'echarts/components'
-import { use } from 'echarts/core'
-import { CanvasRenderer } from 'echarts/renderers'
 import { onMounted, ref } from 'vue'
-import VChart from 'vue-echarts'
 import { getToken } from '~/utils/auth'
 const config = useRuntimeConfig()
 const API_BASE_URL = config.public.apiBaseUrl
 
-use([LineChart, TitleComponent, TooltipComponent, GridComponent, DataZoomComponent, CanvasRenderer])
-
 const dauOption = ref(null)
 const newUserOption = ref(null)
 const postOption = ref(null)
diff --git a/frontend_nuxt/pages/points.vue b/frontend_nuxt/pages/points.vue
index 7a1bba5b3..68cb5f22d 100644
--- a/frontend_nuxt/pages/points.vue
+++ b/frontend_nuxt/pages/points.vue
@@ -12,6 +12,13 @@
             </div>
           </section>
 
+          <section class="trend" v-if="trendOption">
+            <div class="section-title">积分走势</div>
+            <ClientOnly>
+              <VChart :option="trendOption" :autoresize="true" style="height: 300px" />
+            </ClientOnly>
+          </section>
+
           <div class="loading-points-container" v-if="isLoading">
             <l-hatch size="28" stroke="4" speed="3.5" color="var(--primary-color)"></l-hatch>
           </div>
@@ -192,6 +199,7 @@ const isLoading = ref(false)
 const histories = ref([])
 const historyLoading = ref(false)
 const historyLoaded = ref(false)
+const trendOption = ref(null)
 
 const pointRules = [
   '发帖：每天前两次，每次 30 积分',
@@ -221,13 +229,35 @@ const iconMap = {
   LOTTERY_REWARD: 'fas fa-ticket-alt',
 }
 
+const loadTrend = async () => {
+  if (!authState.loggedIn) return
+  const token = getToken()
+  const res = await fetch(`${API_BASE_URL}/api/point-histories/trend?days=30`, {
+    headers: { Authorization: `Bearer ${token}` },
+  })
+  if (res.ok) {
+    const data = await res.json()
+    const dates = data.map((d) => d.date)
+    const values = data.map((d) => d.value)
+    trendOption.value = {
+      tooltip: { trigger: 'axis' },
+      xAxis: { type: 'category', data: dates, boundaryGap: false },
+      yAxis: { type: 'value' },
+      series: [{ type: 'line', areaStyle: {}, smooth: true, data: values }],
+      dataZoom: [{ type: 'slider', start: 80 }, { type: 'inside' }],
+    }
+  }
+}
+
 onMounted(async () => {
   isLoading.value = true
   if (authState.loggedIn) {
     const user = await fetchCurrentUser()
     point.value = user ? user.point : null
+    await Promise.all([loadGoods(), loadTrend()])
+  } else {
+    await loadGoods()
   }
-  await loadGoods()
   isLoading.value = false
 })
 
@@ -363,7 +393,8 @@ const submitRedeem = async () => {
 }
 
 .rules,
-.goods {
+.goods,
+.trend {
   margin-top: 20px;
 }
 
diff --git a/frontend_nuxt/plugins/echarts.client.ts b/frontend_nuxt/plugins/echarts.client.ts
new file mode 100644
index 000000000..4b5a30724
--- /dev/null
+++ b/frontend_nuxt/plugins/echarts.client.ts
@@ -0,0 +1,18 @@
+// plugins/echarts.client.ts
+import { defineNuxtPlugin } from 'nuxt/app'
+import VueECharts from 'vue-echarts'
+import { use } from 'echarts/core'
+import { CanvasRenderer } from 'echarts/renderers'
+import { LineChart } from 'echarts/charts'
+import {
+  GridComponent,
+  TooltipComponent,
+  DataZoomComponent,
+  TitleComponent,
+} from 'echarts/components'
+
+use([LineChart, TitleComponent, TooltipComponent, GridComponent, DataZoomComponent, CanvasRenderer])
+
+export default defineNuxtPlugin((nuxtApp) => {
+  nuxtApp.vueApp.component('VChart', VueECharts)
+})