The invention discloses a movable maintenance trolley for photovoltaic production. The movable maintenance trolley includes a base plate, a folding guide rail device, a worktable and a lifting foot bracket. A plurality of casters are mounted on the bottom surface of the base plate, the folding guide rail device is fixed on the upper end face of the front of the base plate, the worktable is slidably disposed on the folding guide rail device, and the lifting foot bracket is mounted on the base plate. The folding guide rail device includes a pair of folding guide rails and a limiting device. Thelimiting device is fixed on the upper end face of the front of the base plate and located between the pair of folding guide rails. The folding guide rails are foldably accommodated on the worktable, so that a space occupied by the trolley can be reduced; the worktable can move up and down along the folding guide rails, and the lifting foot bracket can ensure stability of the worktable. The movablemaintenance trolley adapts to maintenance of single-body devices of different heights in a thin-film photovoltaic production system, thus reducing the difficulty of maintenance the single-body deviceof the thin-film photovoltaic production system.