The invention discloses strain area sand blasting equipment based on a side-spraying type weighing sensor with double sand-blasting guns. The strain area sand blasting equipment is characterized by comprising a sand blasting bin with a charge hole and a discharge hole, a workpiece conveying device which penetrates through the charge hole and the discharge hole, a first sand-blasting gun and a second sand-blasting gun which are arranged at the two sides of a bearing beam, a workpiece retaining clip which is arranged on a workpiece conveyor belt, a stroke switch arranged at the side of the bearing beam, and a PLC controller. The strain area side blasting equipment disclosed by the invention avoids the problems that a clip and a positioning device are arranged in the prior art, and sand blasting operation at a special position of a workpiece cannot be realized; meanwhile, a side sand blasting mode is adopted, and a blind hole of an elastomer is prevented from being accumulated with sand. A double-side sand blasting mode is adopted to improve grinding efficiency. According to the technical scheme adopted by the invention, sand-blasting grinding efficiency of the strain area can be effectively improved, abnormal grinding of other areas is avoided, and degree of automation is high.