This paper analyzes the characteristics of acoustic-electric imaging well logging in the Yanan Formation in Ordos Basin. The study predicts the distribution of the sand body on the base of the electrical imaging characteristics of sand rock. The tectonic in this area was analyzed by the data of the inclination and tendency of mud rock. The cross bed is found out in many sand rock, and the direction of the paleocurrent is steady from the bottom of Yanan Formation’s sand rock to the top of Yanan Formation’s sand rock, the max stress in horizon has difference in different area. Both the reservoir and the location in the high spot of tectonic are necessary for the industrial oil in reservoir of Yanan Formation in Yanwu area.