///The conditional of geological is complicated and geological disaster development strongly in Tianshuishi Beishan.Lujiawan landslide located on the north side of Zhongliangxiang in Tianshuishi, the landslide is a long tongue, long 840 m, wide 210 m, about the size of 136×10⁴ m³, genus of large loess landslide. Slip direction 105°, slope gradient of 10°~35. Slide in 1979, led to the relocation of the village Lujiawan. Based on the careful field-work and qualitative analysis, this paper presents a series of calculation method and corresponding assessment result about stability analysis of Lujiawan landslide.