Provided is an assembling type log cabin convex face wall body. A wood profile of the wall body is provided with a cuboid base body, the lateral face, serving as an outer wall face, of the wood profile is provided with a part integrated with the wood profile, wherein the middle of the part protrudes outwards, namely the cross section of the profile is similar to a D shape. Double mortises and tenons are formed in the profile of the assembling type log cabin convex face wall body, a lower profile of the wall body profile is arranged on the upper profile, the mortises and the tenons are matched to form the wall body, end insertion mechanisms are respectively arranged at the two ends of each wall body profile, the top face, provided with the tenons, of the profile provided the insertion mechanisms is provided with a groove with an upward opening, and the bottom face, provided with the mortises, of the profile is provided with a groove with a downward opening. The depth of the grooves equals one second of the height of the profile, the lateral faces of the upper opening grooves and the lower opening grooves on the same side are on a vertical face perpendicular to the profile, and the outwards protruding portion of one side of the end, adjacent to the insertion grooves, of the profile is intersected with the profile in an inclined mode to form a 45-degree inclined face. The outer wall of the assembling type log cabin convex face wall body is attractive in appearance, the double mortises and tenons are adopted to enable the wall body to be stable, and the wind-resistant and rain-proof effects are both very good.