A multifunctional plastic frame and a backlight module are disclosed. The multifunctional plastic frame comprises a frame body for supporting an LCD panel and covers movably connected with outer edges of the frame body. The covers are turned over along the outer edges of the frame body to press against edges of the LCD panel and to be buckled to the frame body. According to the present disclosure, the number of parts and consequently the cost are reduced; and the backlight module can be assembled quickly in a convenient way, which is favorable for improving the assembling efficiency of the backlight module.