Abstract: In this paper,a statistical analysis by which the comets are classified is presented.The relationship between the solar activity and the occurrence frequencies of the plasma comets is discussed.The analysis shows that the correlation of cometary events with the solar activity is weak,but obviously,the cometary events correlate to the velocity of the solar wind.Finally,the aberration angle and its kinked effect are discussed,it is quite clear and definite that they both correlate with the solar wind.