Abstract: Based on the engineering geological conditions，the forming mechanism of the “over-covered tikes” structure，widely developed in the Xiao Langdi area of Yellow River，has been analyzed with the methods of mechanics and geology．The results of this study suggest that the relationship between this peculiar structure and landslide could be summarized as follows: 1. Instead of being the cause of landslide．the “over-covered tiles” structure in the Xiao Langdi area is the result of long-term slope creeping caused by slope deformation． 2．The structure in this area wan formed under such engineering geological conditions as interlacing of soft and hard rock stratum，long term creping deformation of slope． 3．Since the “over-covered tiles” structure is a phenomenon caused by long-term creeping deformation of slope in the course of landslide deformation，it could be used to predict and analyze the forming mechanics of landslide．In other areas where this structure is developed，if their engineering geological and hydraulic geological conditions are similar to those in the Xiao Langdi area，the possibility of creeping landslide should be considered．