The equipment for preparing anhydrous magnesium chloride powder includes a melting furnace (9), a crucible (10), a melt pipe (8), a nozzle (13), an air compressor (2), and a collection bin (7); the crucible (10) and The inert gas cylinder (1) is connected with an inert gas delivery pipe (11). The crucible (10) is connected to a melt pipe (8), and the other end of the melt pipe (8) is connected to a nozzle (13) to convey the melt A high-frequency pipe heater is attached to the pipe (8); the nozzle (13) is a linear nozzle; a high-frequency heater is attached to the nozzle (13); a compressed air pipe (4) is provided on the side of the nozzle (13) to compress The other end of the air pipe (4) is connected to the air pressure tank (3) and the air compressor (2). The lower part of the collection chamber (7) is provided with a plug-in type collection port (12). The tail of the collection chamber is connected to a gas cyclone (6) through a pipe. ) And exhaust fan (5). The utility model has the advantages of reasonable equipment structure, simple, convenient operation, and low cost. The product is spherical and has a uniform particle size distribution.