The invention belongs to the technical field of sand mold casting devices, especially relates to novel sand mold casting equipment and a casting method thereof, and aims at solving the problems that in the prior art, a large amount of manual labor and production time cost are consumed, the working efficiency is low, the casting mold precision is poor, moroever, a corresponding proportioning function is lacked, so that sand filling is troublesome, and meanwhile, excessive molding sand overflowing during sand filling is troublesome to recycle, so that the utilization rate of waste sand is reduced. The following scheme is disclosed: the novel sand mold casting equipment comprises a casting sand box, wherein supporting legs are arranged at the four corners of the outer wall of the bottom of the casting sand box, a sand discharging pipe is arranged at the bottom of the casting sand box, and a sand discharging valve is installed on the sand discharging pipe. According to the invention, by starting a stirring motor, the function of stirring a proportioning box can be realized, so that proportioning is facilitated, and during sand filling, a sieve screen can be driven to move back and forth at the same time, and a vibration effect is realized, so that refining for molding sand is facilitated, a high automation degree is achieved, the manual operation intensity is reduced, and the casting precision is improved.