For time-lapse seismic data acquisition, the This paper introduces what's the problem with onshore main non-repeatability factors are related to the differences time-lapse seismic and discusses how to deal with the from geometries, sources, observation directions, geophone problem, and then shows a successful land example of types, offsets of shot and receiver points, seismic crews and Western China. The study indicates that it is difficult to equipment as well as near-surface conditions. For data overcome the non-repeatability effects only by using processing, the non-repeatability factors are associated with cross-equalization and shows that it has to be using the the differences from processing workflow, parameters, specially designed processing techniques to deal with the algorithms, precisions, and contractors (Ross, 1996 and non-repeatability effect. The specially designed processing Rickett, 1999). One way to enhance the repeatability is to techniques can enhance repeatable account of space-varying correct time shift, reflection energy, bandwidth and phase influence from the near surface and the non-repeatability using cross-equalization or workflow. This includes factors of time-lapse seismic acquisition on land, and can rebinning, space-and time-varying amplitude balancing, obtain the image of relative preservation of amplitude, matching filter for pre-stack and poststack, statics and frequency, phase, waveform, and further improving post-stack migration, etc. resolution for the reservoir. With further integration with dynamic information, remaining oil in the reservoir can be Reservoir condition analysis, geological and geophysical described with the reprocessed time lapse seismic data.