The invention relates to a dehumidification-type sand blasting machine with an abrasive material recycling function. The dehumidification-type sand blasting machine comprises a main body, a power device, a conveying pipe, a spray gun, a drying mechanism and a recycling mechanism. The drying mechanism comprises a driving assembly, an air blowing pipe, a drying box, an air extracting pipe, an air extracting pump, a first filter net, a second filter net, two stirring pipes and three one-way valves. The recycling mechanism comprises a recycling cylinder, a communication pipe, an electromagnetic valve, a third filter net and a power assembly. The driving assembly comprises a first motor, a first gear and a second gear. The power assembly comprises a supporting rod, a second motor and fan blades. According to the dehumidification-type sand blasting machine with the abrasive material recycling function, through the drying mechanism, moisture in an abrasive material can be reduced, the possibility that the abrasive material is caked is lowered, and the probability that the sand blasting machine is blocked is lowered; through the recycling mechanism, the abrasive material drifting in air can be recycled, thus recycling of the abrasive material is achieved, and the production cost of the sand blasting machine is lowered.