The utility model discloses a pothook type support for a photovoltaic color plate roof. The pothook type support specifically comprises a supporting and clamping piece, a transverse beam guide rail and a clamping piece, wherein the supporting and clamping piece can slide and is used for fixing the photovoltaic color plate roof, the transverse beam guide rail is connected with the upper end surface of the supporting and clamping piece, and the clamping piece is connected with the transverse beam guide rail, can slide and is used for fixing a frameless solar cell module; the pothook type support is characterized by aslo comprising a pothook, wherein one end of the pothook is used for upwards hooking up the lower side of the frameless solar cell module, the other end of the pothook is used for downwards hooking the transverse beam guide rail, and a special rubber mat having the same height with a rear panel of the frameless solar cell module is arranged on a blocking groove of the transverse beam guide rail. The frameless solar cell module is arranged on the color plate roof through the pothook type support which is convenient and fast; simultaneously, the application of the pothook and the special rubber mat ensures that the pothook type support is in full contact with the frameless solar cell module, and ensures the installation soundness of the solar cell module on the color plate roof; and the pothook type support is low in cost.