The geological conditions in Xiang-Lin Road in Yunnan Province are complex with poor rock quality
far-ranging slopes and numerous clayey gliding mass containing much reduced stones.The test data of this kind of gliding mass are analyzed by the random statistic method and random-fuzzy method. The density function of the shear strength about the gliding mass is worked out firstly. Then the shear strength of the representative slope is acquired in four different ways. At last
the comparison is made between the statistic results so as to get the best indicator.