With　the　deepening　of　police　training,　the　traditional　training　results　analysis　method　can　not　adapt　to　the　needs　of　scientific　training.　In　this　paper,　an　example　of　police　shooting　performance　is　introduced,　and　the　C4.5　decision　tree　learning　algorithm　of　data　mining　is　applied　to　classify　and　analyze　the　shooting　situation,　and　get　the　factors　that　influence　the　performance　of　special　police　training　and　some　other　conclusions.