The invention discloses a selecting grading device for rice production. The device comprises a base, the two sides of the top surface of the base are each fixedly connected with a first sliding rod, afirst stop block is fixedly connected to each first sliding rod, a spring is fixedly connected to the top surface of each first stop block, the top end of each spring is fixedly connected with a first transverse plate, the first transverse plates and the springs sleeve the first sliding rods in sliding connecting modes, and the positions, at the side ends of the first sliding rods, of the first transverse plates are each fixedly connected with a vibrator. According to the device, the vibrators are firstly power-on for vibration, when the vibrators vibrate, an inclined box body vibrates synchronously to enable rice grains in the inclined box body to vibrate and then to roll down along a screening plate, and thus the screening is more sufficient and more complete. The screening speed of thedevice can be adjusted freely through screwing bolts which are in threaded connected with the device, so that not only the rices can be fully graded, the device cost is also reduced, the workload ofpersonnel is reduced as well, the working efficiency is high, and the economic benefit is large.