Abstract: Kinetic study on the formation and evolution of a basin is one of key links of basiningsimulation,it is also momentous significant for the research of trap's formation and evolution,and type and size of oil/gas traps. The deformation of hanging walls may be well described by the field of velocity vector and the time it occurred. Through the establishmentof kinetic mathematical model,the profiling and compaction corrections have been completed in this paper. The modelling reveals the formation and evolution of the Qintong Depression and synsedimentary process,as well as the amount of faulting extensions in various stages.Thereafter,the evolutional characteristics of the Qintong Depression have beenanalvsed in this paper.According to three modelling profiles,the authors have studied dif-ferent evolutional features in the west middle and east sections of the Depression.