The invention discloses a garbage classification trolley for a construction site. The garbage classification trolley for the construction site comprises a trolley body, a partition plate and a liquidcollecting cavity; one end of the trolley body is provided with a hydraulic electric lifting table, the bottom of the hydraulic electric lifting table is connected with a supporting plate, and universal wheels are fixed to the side face of the supporting plate; and a first containing cavity and a second containing cavity are arranged in the trolley body, the partition plate is arranged between thefirst containing cavity and the second containing cavity, a clamping groove is formed in the middle of one side of the partition plate, a clamping post is fixed in the clamping groove, one end of theclamping post penetrates through one of through holes which are evenly formed in a reinforcing plate, the reinforcing plate is welded to the outer side of the trolley body, and sliding blocks are symmetrically arranged at the bottom end of the partition plate. According to the garbage classification trolley for the construction site, the first containing cavity and the second containing cavity are separated through the partition plate, the relative sizes of the first containing cavity and the second containing cavity can be adjusted conveniently by moving the partition plate and making the clamping post penetrate through the corresponding through hole for fixing, and thus garbage classification spaces are sufficiently and effectively utilized.