The invention discloses a novel side die cutting device. The novel side die cutting device comprises a supporting frame. A fixed die is installed on the surface of the supporting frame, the inner partof the fixed die is arranged as a hollow structure, the side of the fixed die is connected with a translation mechanism, an air cylinder is arranged at the top of the fixed die, and a moving die is arranged at the bottom of the fixed die. A plurality of embedded parts are arranged in the hollow structure of the fixed die, the embedded parts are connected through shaft rods in a linking mode, a steam pipeline realizing the opening and closing operation is arranged at the upper end of the air cylinder, and cutting tools are connected to a main shaft of the air cylinder through sliding blocks. The cutting tools correspond to tool position holes formed in the surfaces of the shaft rods, and a sleeve ring of the moving die is connected with a slide rail moving up and down during working. The design is novel, the embedded parts of a connecting structure are adopted, the time of putting into the embedded parts is shortened, the forming cycle is reduced, the positioning accuracy of the embedded parts is improved, and the machining quality of products is guaranteed; and the novel side die cutting device is a very good innovation scheme, and has the market promotion prospect.