The invention relates to a deep towing body used for fine exploration of combustible ice, and belongs to the field of marine resource exploration equipment. The deep towing body comprises a top plate,a chassis, a signal source, a towing body framework, a balancing tail, a towing connector, an electrical hub connection box and a loose-proof clasp. The top disk is located at the upper end of the skeleton; A chassis, the signal source is located at the lower end of the trailing body skeleton, the chassis and the bone trailing body frame are connected by the anti-loosening buckle in an embedded manner, and the signal source and the chassis are threadably connected; The balanced tail fin is installed on the tail part of the skeleton in a modular manner. The connection position of the towing connector and the towing body skeleton is adjustable; The electric hub connection box is arranged at the front end of the skeleton, and is connected with the skeleton through a clasp. The main investigation equipment is arranged along the centerline of the towed body navigation direction, optimal design of flow front, adding modular stern fins, on the one hand, the geometry and layout of facing surface enhances the automatic heading correction ability of deep towed body, on the other hand, it reduces the fluid resistance in the process of towed body moving upward and downward, so that the towedstability of towed body under the influence of ship turbulence is improved, and the quality of deep sea exploration is greatly improved.