The invention belongs to the technical field of foundation engineering such as traffic engineering, municipal engineering, hydraulic engineering and building engineering and relates to a wire-brush-bit rotary drilling jig and a method for solving bit burying, falling and jamming. The wire-brush-bit rotary drilling jig comprises auxiliary travelling and transporting equipment, a drill stand, a rotary well template frame, a power mechanism, a hollow drill stem and a wire brush bit. The wire brush bit comprises a solid drill stem and a wire brush fixedly distributed on the solid drill stem. The wire brush comprises a wire brush body fixedly connected with the solid drill stem and wires embedded in the wire brush body. By aiming at drilling depth and abrasion, deformation and bending of the wire brush bit during a drilling process, deviation and reverse of the bit can be effectively analyzed and drawn precisely to facilitate lifting and fishing, overall fishing efficiency is greatly improved, fishing difficulty is greatly decreased, the drilling rig and the method are applicable to various different accidents and are of great popularization significance.