中文摘要：

影响中国的热带气旋的气候的特征的分析产出这些热带气旋的几有趣的 features.The 频率趋于从 1951～2005 减少，与在在超级台风的频率的过去的十 years.The 减少的最低频率是特别地热带气旋活动的主要季节从5月到11月的 significant.The ，与到 September.There 的从7月的一个活跃时期是三这些的明显的来源热带气旋和他们 var

英文摘要：

Analysis of the climatic characteristics of the tropical cyclones that affect China yields several interesting features. The frequency of these tropical cyclones tended to decrease from 1951 to 2005, with the lowest frequency in the past ten years. The decrease in the frequency of super typhoons is particularly significant. The main season of tropical cyclone activities is from May to November, with an active period from July to September. There are three obvious sources of these tropical cyclones and they vary with seasons and decades. Their movement has also changed with seasons. On average, these tropical cyclones affect China for 5.6 months annually and the period of influence decreases in the past decades. An analysis of daily data indicates that the days of typhoon influence are shorter in winter and spring and longer in summer. The frequency of tropical cyclones is the largest over southeastern China, decreasing northwestward. Taiwan is the region that is affected by tropical cyclones most frequently. The average annual precipitation associated with tropical cyclones has also decreased gradually northwestward from southeastern China.