There are a variety of geological types and structure types in LQ-4 District, including older highlands and mare basalt geological units of the Oceanus Procellarum, Mare Imbrium (important division node of lunar surface history), Mare Frigoris, etc. And also many types of impact craters from bowl-shaped to larger Plato impact craters with basalt filled inside are here. Sinus Iridum in this district will be the candidate region of China’s future lunar exploration landing area. A comparison of the mapping results of the optical models of Lucey, Shkuractov and other researchers on Clementine and the gamma ray spectrometer data reveals that the inversion results are consistent.