Mountain high and steep slope photovoltaic support micropore cast-in-place pile foundation drilling method and application

The invention belongs to the technical field of photovoltaic installation, and particularly relates to a mountain high and steep slope photovoltaic support micropore cast-in-place pile foundation drilling method and application. According to the method, foundation drilling of the mountain high and steep slope photovoltaic support micropore cast-in-place pile is completed through the seven steps of down-the-hole drill transformation, construction preparation, winch fixing at the slope top, down-the-hole drill moving in place and fixing, drilling machine perpendicularity detection, drilling construction and formed hole inspection. In the whole process, a lofting point position is roughly leveled manually, the drill falling position is guaranteed, a favorable position is selected at the slope top to fix a small winch, and the drill is moved to the point position through wheels at the bottom of the down-the-hole drill. And after the down-the-hole drill is supported and fixed, the perpendicularity of the drill is