The utility model discloses crude oil dehydration equipment. The crude oil dehydration equipment comprises an equipment body, a demulsification device and an electric dehydration device, wherein a demulsification device and an electric dehydration device are fixedly mounted in the equipment body, and the demulsification device comprises a demulsification box and a mounting box; a first oil inlet is formed in the top of the demulsification box, and an ultrasonic unit is arranged in the mounting box; at least one stirring unit is arranged in the demulsification box, and a trace water analyzer isfixedly mounted on the demulsification box; a first oil outlet is formed in the bottom of the demulsification tank; the electric dehydration device comprises a high-voltage electric box, a second oilinlet is formed in the high-voltage electric box, and the second oil inlet is connected with the first oil outlet through a connecting pipe; first electrodes are arranged at the top and the bottom ofthe high-voltage electricity box. An oil outlet pipe and a water outlet pipe are arranged on the side of the high-voltage electricity box. The stirring unit and the ultrasonic unit are used for demulsifying crude oil, and the first electrode in the high-voltage electric box is used for realizing oil-water separation, so that the purpose of efficiently and quickly dehydrating the crude oil in a short time is achieved.