diff --git a/resource/tasks/tasks.json b/resource/tasks/tasks.json
index c514f62045..496141e8f9 100644
--- a/resource/tasks/tasks.json
+++ b/resource/tasks/tasks.json
@@ -3864,7 +3864,9 @@
         "algorithm": "OcrDetect",
         "isAscii": true,
         "text": [],
-        "roi": [50, 0, 100, 40]
+        "roi": [50, 0, 100, 40],
+        "specialParams_doc": "Kill区域变化阈值, 模板匹配, 100=1.0; 正常在 0.997-1 之间波动, 少有0.995; _5->_6 的分数最高, 可达0.94",
+        "specialParams": [98]
     },
     "BattleCostData": {
         "baseTask": "NumberOcrReplace",
diff --git a/src/MaaCore/Common/AsstTypes.h b/src/MaaCore/Common/AsstTypes.h
index bad4bc49b6..b44f90322b 100644
--- a/src/MaaCore/Common/AsstTypes.h
+++ b/src/MaaCore/Common/AsstTypes.h
@@ -3,6 +3,7 @@
 #include <array>
 #include <climits>
 #include <cmath>
+#include <concepts>
 #include <functional>
 #include <optional>
 #include <ostream>
@@ -215,6 +216,37 @@ struct Rect
 
     Rect move(Rect move) const { return { x + move.x, y + move.y, move.width, move.height }; }
 
+    // 创建一个包含所有传入Rect的最小包围盒
+    static Rect bounding_box(const std::vector<Rect>& rects)
+    {
+        if (rects.empty()) {
+            return {};
+        }
+
+        int min_x = INT_MAX;
+        int min_y = INT_MAX;
+        int max_x = INT_MIN;
+        int max_y = INT_MIN;
+
+        for (const auto& rect : rects) {
+            min_x = std::min<int>(min_x, rect.x);
+            min_y = std::min<int>(min_y, rect.y);
+            max_x = std::max<int>(max_x, rect.x + rect.width);
+            max_y = std::max<int>(max_y, rect.y + rect.height);
+        }
+
+        return { min_x, min_y, max_x - min_x, max_y - min_y };
+    }
+
+    // 创建一个包含所有传入Rect的最小包围盒
+    template <typename... Args>
+    requires(std::same_as<std::remove_cvref_t<Args>, Rect> && ...)
+    static Rect bounding_box(const Rect& first, const Args&... args)
+    {
+        std::vector<Rect> rects = { first, args... };
+        return bounding_box(rects);
+    }
+
     int x = 0;
     int y = 0;
     int width = 0;
diff --git a/src/MaaCore/Task/BattleHelper.cpp b/src/MaaCore/Task/BattleHelper.cpp
index 1178607ca0..f61a9a8bf4 100644
--- a/src/MaaCore/Task/BattleHelper.cpp
+++ b/src/MaaCore/Task/BattleHelper.cpp
@@ -330,19 +330,21 @@ cv::Mat asst::BattleHelper::get_top_view(const cv::Mat& cam_img, bool side)
     return result;
 }
 
-bool asst::BattleHelper::update_kills(const cv::Mat& reusable)
+bool asst::BattleHelper::update_kills(const cv::Mat& image, const cv::Mat& image_prev)
 {
-    cv::Mat image = reusable.empty() ? m_inst_helper.ctrler()->get_image() : reusable;
     BattlefieldMatcher analyzer(image);
     analyzer.set_object_of_interest({ .kills = true });
+    analyzer.set_image_prev(image_prev);
     if (m_total_kills) {
         analyzer.set_total_kills_prompt(m_total_kills);
     }
     auto result_opt = analyzer.analyze();
-    if (!result_opt || !result_opt->kills) {
+    if (!result_opt || result_opt->kills.status == BattlefieldMatcher::MatchStatus::Invalid) {
         return false;
     }
-    std::tie(m_kills, m_total_kills) = result_opt->kills.value();
+    if (result_opt->kills.status == BattlefieldMatcher::MatchStatus::Success) {
+        std::tie(m_kills, m_total_kills) = result_opt->kills.value;
+    }
     return true;
 }
 
@@ -924,7 +926,7 @@ bool asst::BattleHelper::move_camera(const std::pair<double, double>& delta)
     LogTraceFunction;
     Log.info("move", delta.first, delta.second);
 
-    update_kills();
+    update_kills(m_inst_helper.ctrler()->get_image());
 
     // 还没转场的时候
     if (m_kills != 0) {
diff --git a/src/MaaCore/Task/BattleHelper.h b/src/MaaCore/Task/BattleHelper.h
index 92dd304d5e..9d552db543 100644
--- a/src/MaaCore/Task/BattleHelper.h
+++ b/src/MaaCore/Task/BattleHelper.h
@@ -53,7 +53,7 @@ protected:
         std::vector<battle::DeploymentOper>& cur_opers,
         const std::vector<battle::DeploymentOper>& old_deployment_opers,
         bool stop_on_unknown);
-    bool update_kills(const cv::Mat& reusable = cv::Mat());
+    bool update_kills(const cv::Mat& image, const cv::Mat& image_prev = cv::Mat());
     bool update_cost(const cv::Mat& image, const cv::Mat& image_prev = cv::Mat());
 
     cv::Mat get_top_view(const cv::Mat& cam_img, bool side = true);
diff --git a/src/MaaCore/Task/Experiment/CombatRecordRecognitionTask.cpp b/src/MaaCore/Task/Experiment/CombatRecordRecognitionTask.cpp
index b2ca711ce6..67b7ebbf78 100644
--- a/src/MaaCore/Task/Experiment/CombatRecordRecognitionTask.cpp
+++ b/src/MaaCore/Task/Experiment/CombatRecordRecognitionTask.cpp
@@ -377,8 +377,8 @@ bool asst::CombatRecordRecognitionTask::slice_video()
         m_battle_end_frame = 0;
         not_in_battle_count = 0;
 
-        if (result_opt->kills) {
-            auto& [cur_kills, cur_total_kills] = *result_opt->kills;
+        if (result_opt->kills.status == BattlefieldMatcher::MatchStatus::Success) {
+            auto& [cur_kills, cur_total_kills] = result_opt->kills.value;
             if (cur_kills != latest_kills) {
                 m_frame_kills.emplace_back(std::make_pair(i, cur_kills));
             }
diff --git a/src/MaaCore/Task/Miscellaneous/BattleProcessTask.cpp b/src/MaaCore/Task/Miscellaneous/BattleProcessTask.cpp
index 2804580d31..fdf901a4b0 100644
--- a/src/MaaCore/Task/Miscellaneous/BattleProcessTask.cpp
+++ b/src/MaaCore/Task/Miscellaneous/BattleProcessTask.cpp
@@ -340,7 +340,7 @@ bool asst::BattleProcessTask::wait_condition(const Action& action)
     if (m_kills < action.kills) {
         update_image_if_empty();
         while (!need_exit() && m_kills < action.kills) {
-            update_kills(image);
+            update_kills(image, image_prev);
             if (m_kills >= action.kills) {
                 break;
             }
diff --git a/src/MaaCore/Vision/Battle/BattlefieldMatcher.cpp b/src/MaaCore/Vision/Battle/BattlefieldMatcher.cpp
index 7e28517f6f..81dff19e32 100644
--- a/src/MaaCore/Vision/Battle/BattlefieldMatcher.cpp
+++ b/src/MaaCore/Vision/Battle/BattlefieldMatcher.cpp
@@ -49,7 +49,7 @@ BattlefieldMatcher::ResultOpt BattlefieldMatcher::analyze() const
 
     if (m_object_of_interest.kills) {
         result.kills = kills_analyze();
-        if (!result.kills) {
+        if (result.kills.status == MatchStatus::Invalid) {
             return std::nullopt;
         }
     }
@@ -271,15 +271,18 @@ bool BattlefieldMatcher::kills_flag_analyze() const
     return flag_analyzer.analyze().has_value();
 }
 
-std::optional<std::pair<int, int>> BattlefieldMatcher::kills_analyze() const
+BattlefieldMatcher::MatchResult<std::pair<int, int>> BattlefieldMatcher::kills_analyze() const
 {
+    if (hit_kills_cache()) {
+        return { .status = MatchStatus::HitCache };
+    }
     TemplDetOCRer kills_analyzer(m_image);
     kills_analyzer.set_task_info("BattleKillsFlag", "BattleKills");
     kills_analyzer.set_replace(Task.get<OcrTaskInfo>("NumberOcrReplace")->replace_map);
 
     auto kills_opt = kills_analyzer.analyze();
     if (!kills_opt) {
-        return std::nullopt;
+        return {};
     }
     const std::string& kills_text = kills_opt->front().text;
 
@@ -292,7 +295,7 @@ std::optional<std::pair<int, int>> BattlefieldMatcher::kills_analyze() const
             // 第一次识别就识别错了，识别成了 "0141"
             if (kills_text.at(0) != '0') {
                 Log.error("m_total_kills_prompt is zero");
-                return std::nullopt;
+                return {};
             }
             pos = 1;
         }
@@ -300,7 +303,7 @@ std::optional<std::pair<int, int>> BattlefieldMatcher::kills_analyze() const
             size_t pre_pos = kills_text.find(std::to_string(m_total_kills_prompt));
             if (pre_pos == std::string::npos || pre_pos == 0) {
                 Log.error("can't get pre_pos");
-                return std::nullopt;
+                return {};
             }
             Log.trace("pre total kills pos:", pre_pos);
             pos = pre_pos - 1;
@@ -310,7 +313,7 @@ std::optional<std::pair<int, int>> BattlefieldMatcher::kills_analyze() const
     // 例子中的"0"
     std::string kills_count = kills_text.substr(0, pos);
     if (kills_count.empty() || !ranges::all_of(kills_count, [](char c) -> bool { return std::isdigit(c); })) {
-        return std::nullopt;
+        return {};
     }
     int kills = std::stoi(kills_count);
 
@@ -327,7 +330,35 @@ std::optional<std::pair<int, int>> BattlefieldMatcher::kills_analyze() const
     total_kills = std::max(total_kills, m_total_kills_prompt);
 
     Log.trace("Kills:", kills, "/", total_kills);
-    return std::make_pair(kills, total_kills);
+    return { .value = std::make_pair(kills, total_kills), .status = MatchStatus::Success };
+}
+
+bool asst::BattlefieldMatcher::hit_kills_cache() const
+{
+    if (m_image_prev.empty() || m_image.cols != m_image_prev.cols || m_image.rows != m_image_prev.rows) {
+        return false;
+    }
+    Matcher flag_match(m_image);
+    flag_match.set_task_info("BattleKillsFlag");
+    if (!flag_match.analyze()) {
+        return false;
+    }
+    const auto& flag_rect = flag_match.get_result().rect;
+    const auto& task = Task.get("BattleKills");
+    const auto& roi = flag_rect.move(task->roi);
+
+    cv::Mat kills_image_cache = make_roi(m_image_prev, roi);
+    cv::Mat kills_image = make_roi(m_image, roi);
+    cv::cvtColor(kills_image_cache, kills_image_cache, cv::COLOR_BGR2GRAY);
+    cv::cvtColor(kills_image, kills_image, cv::COLOR_BGR2GRAY);
+    cv::Mat match;
+    cv::matchTemplate(kills_image, kills_image_cache, match, cv::TM_CCOEFF_NORMED);
+    double mark;
+    cv::minMaxLoc(match, nullptr, &mark);
+    // 正常在 0.997-1 之间波动, 少有0.995
+    // _5->_6 的分数最高, 可达0.94
+    const double threshold = static_cast<double>(task->special_params[0]) / 100;
+    return mark > threshold;
 }
 
 bool BattlefieldMatcher::cost_symbol_analyze() const
diff --git a/src/MaaCore/Vision/Battle/BattlefieldMatcher.h b/src/MaaCore/Vision/Battle/BattlefieldMatcher.h
index cb350cbf5a..9298803ca9 100644
--- a/src/MaaCore/Vision/Battle/BattlefieldMatcher.h
+++ b/src/MaaCore/Vision/Battle/BattlefieldMatcher.h
@@ -37,7 +37,7 @@ public:
     {
         ObjectOfInterest object_of_interest;
         std::vector<battle::DeploymentOper> deployment;
-        std::optional<std::pair<int, int>> kills; // kills / total_kills
+        MatchResult<std::pair<int, int>> kills; // kills / total_kills
         MatchResult<int> costs;
 
         // bool in_detail = false;
@@ -67,9 +67,11 @@ protected:
     int oper_cost_analyze(const Rect& roi) const;
     bool oper_available_analyze(const Rect& roi) const;
 
-    std::optional<std::pair<int, int>> kills_analyze() const; // 识别击杀数
-    bool cost_symbol_analyze() const;                         // 识别费用左侧图标
-    MatchResult<int> costs_analyze() const;                   // 识别费用
+    MatchResult<std::pair<int, int>> kills_analyze() const; // 识别击杀数
+    // 识别是否持有费用是否命中缓存
+    bool hit_kills_cache() const;
+    bool cost_symbol_analyze() const;       // 识别费用左侧图标
+    MatchResult<int> costs_analyze() const; // 识别费用
     // 识别是否持有费用是否命中缓存
     bool hit_costs_cache() const;
     bool in_detail_analyze() const;        // 识别是否在详情页