Disclosed is a face-to-face duplex thrust angular-contact ball bearing. The problems that under the low-speed heavy load on an existing lead screw, the bearing capacity of a bearing is small, the strength is low, the life is short, the property of the bearing is poor, and assembly is difficult are solved. The face-to-face duplex thrust angular-contact ball bearing comprises a holder, a rolling body, an inner ring and an outer ring. The rolling body is mounted in the holder, and the holder is mounted between the inner ring and the outer ring. The contact angle of the bearing is designed to be alarge contact angle of 57-63 degrees. The inner ring and the outer ring are both designed to be provided with single retaining sides, and an oblique pocket hole solid holder is adopted as the holder.The face-to-face duplex thrust angular-contact ball bearing is used for working of the lead screw under the low-speed heavy load.