Installation method of unit curtain wall capable of being movably adjusted in five directions

The invention relates to an installation method of a unit curtain wall capable of being movably adjusted in five directions, which comprises the following steps of: determining an installation position, and forming a positioning hole corresponding to the installation position in a keel in advance; positioning: fixing the front end of the connecting support on the keel through a mounting piece; assembling is conducted, specifically, the first adjusting piece, the second adjusting piece, the third adjusting piece, the connecting corner piece and the fourth adjusting piece are sequentially installed at the rear end of the connecting support in the direction away from the keel; welding: welding the connecting support on the keel; mounting is conducted, specifically, the curtain wall steel frame is connected with the connecting corner piece through a fourth adjusting piece; adjusting the first adjusting piece; adjusting the second adjusting piece; adjusting a third adjusting piece; and adjusting the fourth adjusti