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The selection of the ancient landslide geophysical survey methods is very important for the explora- tion in effect�� Taking the study of the landslide in Ji'an �� Tonghua highway of Jilin Province as an example��based on highdensity electrical method and refraction method��the data were processed by 2D inversion technique�� In combination with the geological information��the morphology and thickness for the landslide are determined��which thickness is about 20 m��and the landslide belongs to the accumulated layer landslide in nature�� The study result shows that the high density electrical method and refraction method are feasible and economical cost to ascertain the slide surface position and landslide range��