The invention relates to a photovoltaic tile installation system. The photovoltaic tile installation system includes an engaging component and a hanging component. The engaging component includes a fixing frame, an engaging frame, a fixing bolt, a fixing nut and a sheathing frame. , the support plate is used to support the first photovoltaic tile, the edge of the support plate is inclined downward to form a flexible plate, the bottom edge of the flexible plate is formed with a barb plate inward, the engaging frame is fixedly supported on the tile bar, and the engaging frame An engaging plate is formed, and the engaging plate is engaged with the middle part of the fixing frame, and the fixing bolts are passed through the engaging frame and the fixing frame. The photovoltaic tile installation system is installed relatively firmly, is not easy to be blown away by typhoons, and is convenient for manual disassembly and assembly.