The invention discloses a percussion drill bit bit-hook and method. The bit-hook comprises an upper circular ring, a lower circular ring, a middle upper circular ring, a middle lower circular ring anda plurality of hooks, wherein the upper circular ring and the lower circular ring are fixedly connected to form a frustum-shaped frame through a plurality of diagonal rods, and the middle upper circular ring and the middle lower circular ring are fixed to the middle of the frustum-shaped frame. The middle upper circular ring is hinged with the upper ends of the hooks separately, lateral slings pass through the outer sides of the lower portions of the hooks in sequence, and the middle lower circular ring are further connected to the outer sides of the lower portions of the hooks through tension springs. The method comprises the steps that (1) the frustum-shaped frame descends to the bottom of a pile hole to cover a percussion drill bit; (2) the lateral slings are pulled upwards, the lowerends of the hooks hook hanging rings; and (3) the frustum-shaped frame carries the percussion drill bit out of the pile hole. The bit-hook is simple in structure, and the method is convenient and easyto operate. The percussion drill bit can be easily and quickly removed from the pile hole, the cost of removing operation is reduced, and the safety of operation and the efficiency of hole-forming ofthe pile hole are improved.