The invention relates to automatic grading and screening equipment for fruit grains. The automatic grading and screening equipment for the fruit grains comprises a bottom plate, conveyors, connecting supports, containing mechanisms, vertical plates, screening mechanisms and a collecting frame, wherein the conveyors are distributed above the bottom plate, the conveyors are installed on the top of the bottom plate through supports arranged at the bottoms of the conveyors, the connecting supports are evenly installed on the conveyors correspondingly, and the top of each connecting support is provided with one containing mechanism, the vertical plates are located in the conveyors and installed on the top of the bottom plate, and the screening mechanisms are evenly installed on the tops of the vertical plates in the length direction of the vertical plates. According to the automatic grading and screening equipment for the fruit grains, the following problems existing during existing fruit screening that the position of fruits cannot be positioned, the fruits have the hidden danger of sliding off, a rotating plate for placing the fruits cannot rotate by a large angle, the phenomenon that the fruits are clamped on the rotating plate is caused, and the fruit screening weight cannot be rapidly adjusted can be solved.