The invention discloses preparation equipment for a 3D printing material. The preparation equipment comprises a lower equipment body and a lifting equipment body arranged at the top of the lower equipment body. The lifting equipment body is internally provided with left-right communicating lifting sliding grooves. An upper equipment body extending towards the left side is connected into the lifting sliding grooves in a slidably matched mode. The upper equipment body is internally provided with a lifting threaded rod extending in the up-down direction. The tail end of the top of the lifting threaded rod is connected with the top walls of the lifting sliding grooves in a rotating fit mode. The tail end of the bottom of the lifting threaded rod is in power fit connection with a lifting motorfixedly embedded into the end face of the top of the lower equipment body. A material mixing barrel mechanism is arranged on the left side of the lower equipment body. The extending section of the left side of the upper equipment body is located on the upper side of the material mixing barrel mechanism. A first cavity is formed in the position, on the left side of the lifting threaded rod, of theupper equipment body. A second cavity is arranged in the position, on the left side of the first cavity, of the upper equipment body. The interior of the first cavity is sliding fit connection with apushing sliding block.