The Lancang-Gengma earthquake sequence of 1988 formed a obvious epicenter zone which is in NNW strike. The events of M7.6 and M7.2 formed it's seismic deformation belt in the ground separately. The earthquake-generating tectonics of M7.2 earthquake is Hanmuba fault in NNW trend. The M7.6 earthquake showed the complicated character of earthquake-generating tectonics, it formed obvious seismic deformation belt separately along Muga fault and Laneang-Menghai fault. The activity of strong aftershoek related to the faults in NE trend in Laneang-Gengma area. Therefore, Laneang-Gengma earthquake sequence has complicated patterns of earthquake-generating tectonics and seismic rupture.