The utility model provides a balcony hanging solar panel fixed bolster, support subject is connected with connecting rod and lower connecting rod at the back, it articulates on support subject upper portion to go up the connecting rod, the connecting rod articulates in the support subject lower part down, go up the rear end of the connection rod fixedly connected with regulating plate, set up the adjustment tank of vertical setting on the regulating plate, the positioning screw is worn to be equipped with by the adjustment tank internalization, the outer wall fixed plate that positioning screw rear end fixedly connected with links to each other with wall fixing, the anterior threaded connection of positioning screw has last set nut, the regulating plate is connected with outer wall fixed plate relatively fixed through last set nut, the sleeve pipe that links to each other with wall fixing was worn to the movable sleeve around lower connecting rod was outer, and the inboard relative swivelling joint in sleeve pipe rear end of wall body has lower set nut, and lower set nut is connected through the screw thread with lower connecting rod. Port outside fixedly connected with backstop ring behind the sheathed tube, the preceding ring that keeps off has been worn to the outer movable sleeve of sleeve pipe of backstop ring front side, and the setting of preceding fender ring relative rotation encircles the front side in the backstop, and lower set nut fixes with preceding fender ring and links to each other.