The invention provides a continuous production process for a powdery industrial explosive for metal explosion cladding. The continuous production process comprises steps as follows: A, spiral premixing is performed: ammonium nitrate is conveyed to the spiral premixing position through a screw conveyor, meanwhile, wood powder is conveyed to the premixing position through the screw conveyor, a compound oil phase is conveyed to the spiral premixing position through an oil sprayer, and the materials are conveyed to the spiral premixing position through the screw conveyor and subjected to spiral premixing in the spiral premixing position; B, mixing is performed by a continuous mixer: the materials subjected to the spiral premixing are conveyed to the mixer for mixing, and a product obtained through mixing is directly cooled through a water-cooled screw conveyor, transported and packaged. The continuous production process has the advantages as follows: 1, the continuous mixer is adopted to replace an original intermittent edge mill, a finished product is produced continuously, the production process is simplified, the production cost is reduced, and the working efficiency is improved.