Preparation method for image concrete

The invention discloses a preparation method for image concrete. The preparation method comprises the following steps that S1, a precast concrete body is prepared for later use, a transfer film with apattern is bonded to a cleaned steel formwork for later use, and the side with the pattern is the side far away from the steel formwork; S2, a mold is laid on the ground, the precast concrete body prepared in the step S1 is poured into the mold, after 30-40 minutes, light-emitting powder is sprayed, the steel formwork bonded with the transfer film in the step S1 is pressed on the precast concretebody, and the side, with the pattern, of the transfer film is located on the precast concrete body so as to obtain a concrete member; and S3, the steel formwork on the concrete member in the step S2is separated from the concrete member, then the side, making contact with the transfer film, of the concrete member is washed with high-pressure water, curing is carried out for 12 days, and then a surface protectant is sprayed