According to field survey and measurement of the geology and landform of the Hanmuba-Lancang fault in late Quaternary, the latest tectonic characteristics of the fault in late Quaternary were discussed on the basis of previous study. The preliminary analysis was that the fault with length of about 120 km belonged to the Holocene active fault with right-lateral strike-slip. The fault activity had obvious characteristics of segment. The north segment was Hanmuba fault, which was the causative structure of Gengma M_s7.2 earthquake in 1988. The south segment was Lancang fault, which was one of seismogenic faults of Lancang M_s7.6 earthquake in 1988. A variety of dislocation landforms had been formed by new fault activities since the late Quaternary, such as dextral dislocation of gullies and ridges, fault groove, fault pars, fault escarpment and pit. According to the relevant data, we estimated that the rate of right-lateral strike-slip of the fault in late Quaternary was about (4.7±0.5) mm/a.