The invention discloses a mud screen with a vibrating body molded at a time. The mud screen comprises a rack, a screen frame, the vibrating body and a vibrating motor; the vibrating body is fixed to the rack through a buffer spring, the screen frame is fixed to the upper portion of the vibrating body through a clamp, the vibrating motor is fixed to the bottom of the vibrating body through a bolt, the vibrating body is integrally molded through an annular upper edge, a round-table-shaped connecting body and an annular lower edge, the annular upper edge of the vibrating body and the lower edge of the screen frame are fixedly connected through the clamp, a reinforcing flange is fixed to the annular lower edge of the vibrating body, and the vibrating motor is fixedly connected with the reinforcing flange on the annular lower edge of the vibrating body through a bolt. The mud screen is high in assembling efficiency, labor intensity of workers is reduced, and the service life of the mud screen is prolonged to a certain degree.