diff --git a/assets/style.css b/assets/style.css
index b5cf740..7611c63 100644
--- a/assets/style.css
+++ b/assets/style.css
@@ -1159,3 +1159,36 @@ input[type="date"]::-webkit-calendar-picker-indicator { cursor: pointer; padding
     .lightbox-next { right: 8px; }
     .lightbox-img { max-height: 66vh; }
 }
+
+/* ── 18. 活动页节点卡片：参与人（头像 + 名字） ────────────────────────────── */
+.node-members {
+    display: flex; flex-wrap: wrap; gap: 5px;
+    margin-top: 8px; padding-top: 8px;
+    border-top: 1px dashed var(--border);
+}
+.node-member-chip {
+    display: inline-flex; align-items: center; gap: 5px;
+    padding: 2px 9px 2px 3px;
+    background: var(--bg-soft);
+    border: 1px solid var(--border);
+    border-radius: 999px;
+    font-size: 12px; color: var(--text-soft);
+    text-decoration: none;
+    max-width: 100%;
+}
+.node-member-chip:hover { border-color: var(--accent); color: var(--accent); }
+.node-member-chip img,
+.node-member-avatar-fallback {
+    width: 20px; height: 20px;
+    border-radius: 50%;
+    object-fit: cover;
+    flex: 0 0 auto;
+}
+.node-member-avatar-fallback {
+    display: inline-flex; align-items: center; justify-content: center;
+    background: var(--accent-soft, var(--bg-soft));
+    color: var(--accent);
+    font-size: 11px; font-weight: 650;
+}
+.node-member-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.node-member-emotion { font-size: 13px; line-height: 1; }
diff --git a/src/Controllers/ActivityController.php b/src/Controllers/ActivityController.php
index 7a64f1c..2201f72 100644
--- a/src/Controllers/ActivityController.php
+++ b/src/Controllers/ActivityController.php
@@ -8,6 +8,7 @@ use App\Auth;
 use App\Comments;
 use App\Database;
 use App\Expenses;
+use App\Members;
 use App\Mime;
 
 class ActivityController
@@ -214,11 +215,18 @@ class ActivityController
         $stmt->execute([$id]);
         $executedPlanIds = array_map('intval', $stmt->fetchAll(\PDO::FETCH_COLUMN));
 
+        // 每个节点的参与人（头像 / 姓名），渲染在节点卡片底部 —— 一条 IN 查询，不 N+1
+        $nodeMembers = Members::forNodes(array_merge(
+            array_column($planNodes, 'id'),
+            array_column($realityNodes, 'id')
+        ));
+
         view('activities/show', [
             'activity'        => $activity,
             'planNodes'       => $planNodes,
             'realityNodes'    => $realityNodes,
             'executedPlanIds' => $executedPlanIds,
+            'nodeMembers'     => $nodeMembers,
             'expenseSummary'  => Expenses::summaryForActivity($id),
             'commentTree'     => Comments::tree(Comments::TARGET_ACTIVITY, $id),
             'pageTitle'       => $activity['title'],
diff --git a/src/Members.php b/src/Members.php
index 8919445..0a5cf31 100644
--- a/src/Members.php
+++ b/src/Members.php
@@ -84,6 +84,29 @@ class Members
         return $out;
     }
 
+    /**
+     * 一次查完多个节点的参与人明细（头像 / 姓名 / 情绪），供活动页的节点卡片使用。
+     * 一条 IN 查询带回全部节点，避免每张卡片单独查（N+1）。
+     * @return array<int, array<int, array>> node_id => 参与人列表（按 node_members.id ASC）
+     */
+    public static function forNodes(array $nodeIds): array
+    {
+        if (empty($nodeIds)) return [];
+        $ph = implode(',', array_fill(0, count($nodeIds), '?'));
+        $stmt = Database::get()->prepare('
+            SELECT nm.trip_node_id, nm.user_id, nm.emotion, u.name, u.avatar
+            FROM node_members nm
+            LEFT JOIN users u ON u.id = nm.user_id
+            WHERE nm.trip_node_id IN (' . $ph . ')
+            ORDER BY nm.id ASC');
+        $stmt->execute(array_values($nodeIds));
+        $out = [];
+        foreach ($stmt->fetchAll() as $row) {
+            $out[(int)$row['trip_node_id']][] = $row;
+        }
+        return $out;
+    }
+
     /**
      * 新增或更新一个参与人（同一节点同一人只留一条）
      * @return array{ok: bool, error?: string}
diff --git a/templates/activities/_node_card.php b/templates/activities/_node_card.php
index aa1078e..c7b997d 100644
--- a/templates/activities/_node_card.php
+++ b/templates/activities/_node_card.php
@@ -1,10 +1,12 @@
 <?php
 /**
  * 节点卡片（计划列 / 执行列共用）
- * 依赖外部变量：$n（节点行）、$cardCategory（plan|reality）、$executedPlanIds
+ * 依赖外部变量：$n（节点行）、$cardCategory（plan|reality）、$executedPlanIds、
+ *              $nodeMembers（node_id => 参与人列表，ActivityController::show 注入；可缺省）
  */
 $cardCategory = $cardCategory ?? 'plan';
 $executedPlanIds = $executedPlanIds ?? [];
+$nodeMembersMap = $nodeMembers ?? [];
 
 $statusLabels = [
     'planned'   => '待执行',
@@ -72,6 +74,30 @@ if ($cardCategory === 'plan') {
         <div class="node-cancel-reason">取消原因：<?= e($n['cancel_reason']) ?></div>
     <?php endif; ?>
 
+    <?php /* 参与人：头像 + 名字（有心情顺带一个小 emoji），点行内任一人进节点参与区 */ ?>
+    <?php $cardMembers = $nodeMembersMap[(int)$n['id']] ?? []; ?>
+    <?php if (!empty($cardMembers)): ?>
+        <div class="node-members">
+            <?php foreach ($cardMembers as $cm):
+                $cmName = (string)($cm['name'] ?? '');
+                if ($cmName === '') $cmName = '已注销用户';
+            ?>
+                <a class="node-member-chip" href="<?= url('nodes/show', ['id' => $n['id']]) ?>#members"
+                   title="<?= e($cmName) ?>">
+                    <?php if (!empty($cm['avatar'])): ?>
+                        <img src="<?= e($cm['avatar']) ?>" alt="" loading="lazy">
+                    <?php else: ?>
+                        <span class="node-member-avatar-fallback"><?= e(mb_substr($cmName, 0, 1)) ?></span>
+                    <?php endif; ?>
+                    <span class="node-member-name"><?= e($cmName) ?></span>
+                    <?php if (!empty($cm['emotion'])): ?>
+                        <span class="node-member-emotion"><?= e($cm['emotion']) ?></span>
+                    <?php endif; ?>
+                </a>
+            <?php endforeach; ?>
+        </div>
+    <?php endif; ?>
+
     <div class="node-actions">
         <span class="status-tag status-<?= e($st) ?>"><?= e($statusLabels[$st]) ?></span>