Abstract: This article makes an approach to the control of thrusting over migration and accumulation of oil and gas in light of the characteristics of the thrusts during their development.It is believed,through theoretical derivation and comparing the results of simulation experiments with the objective reality,that it is most possible for oil and gas to accumulate in places where the thrust surface becomes steeper.It is suggested that geologists should pay more attention to this belt in search of oil and gas deposits.This article focuses discussion on the control of thrusting over migration and accumulation of oil and gas,rather than the process of their migration or accumulation.It is hoped that this paper could provide useful informations for the search of additional oil and gas resources in thrust belts and for further advancing the works on new domains and new areas.