Abstract:The energy and frequency of seismic wave field produced by artificial shooting obviously have close relations with charge size,charge type,shooting coupling and down-spread of effective shooting energy.These questions have been discussed in many literatures and textbooks which reached many useful conclusions,such as inverse ratio of shooting frequency with charge size,inverse ratio of shooting frequency with radius of shooting wreck and direct ratio of shooting frequency with velocity of coupling medium,etc.But how to correctly use these conclusions in practice is often very difficult.The major problems are:①It is difficult to directly come to more accurate and quantitative test conclusions from real test shot-gathers;② The shooting resVlts are results of mufti-factor influence so that it is hard toreach quantitative analytic conclusion produced by single factor from real test shotgathers;③Poor signal-to-noise ratio commonly resulted from real test shot-gathers has influences on difference directly obtained shooting parameters variance;④Because of many accidental factors in shooting(such as incomplete shooting and shooting coupling variance,etc),it can have impact on precision of quantitativeanalysis.Therefore,the aim of the paper is to hope provide an analysis method that can more accurately come to the conclusion of charge size and charge type from real shot-gathers and car guide seismic field acquisition.