Abstract: According to the a nalysis of the ga s-bea ring seismic anomaly a nd old-well log interpreta tion, the current conditions of biogas exploration in the eastern Qaidam Basin and its technical problems are illustrated. Solutions, such a s 2D seismic reprocessing, reinterpreta tion or recollection, implementing variable-speed mapping, carrying out 3D seismic exploration, are proposed to solve the problems of the low relief structure hard to find out and the thin sandbody hard to identify under the special geologic conditions of the little strata dip, the low reflection v elocity, the thin interbedded of sandstone-mudstone, and saturation formation wa ter. It is hoped that such solutions may provide an instruction to the further deployment of biogas exploration in the eastern region and the explora tion research in similar regions

Key words: the ea stern Qaidam Basin, biogenic gas, exploration condition, resea rch cognition, the problems to be solv ed, solution