The invention belongs to chemical equipment devices, and particularly relates to a chemical solid raw material fine grinding process processing system. The system comprises a cylinder body, a motor, arotating shaft and a crushing head, the left upper portion of the cylinder body is connected with a feeding port, the motor is arranged at the top of the cylinder body and is connected with the rotating shaft which is vertically located inside the cylinder body, a crushing blade is arranged on the upper portion of the rotating shaft, a rebound module is arranged in the middle of the rotating shaft, the rebound module is used for bouncing the large-block materials, a connecting rod is coaxially installed below the rebound module, one end of the connecting rod is connected with a folding rod, the lower portion of the rotating shaft is connected with the crushing head, the crushing head is positioned in a crushing wall, the crushing head rotates in the crushing wall to realize grinding of the materials, a vibrating screen which is obliquely arranged is arranged at the bottom end of a falling opening, a collecting box is arranged at one end of the vibrating screen, and a discharging opening is formed in the bottom end of the cylinder body. Through the mutual cooperation of the arranged rebound module and the crushing blade, full crushing of the large-block materials is realized, the burden of the crushing head is reduced, and the abrasion of a crushing bulge is reduced.