The invention belongs to the field of wood structure joint design, and relates to an inner ring ribbing large-span wood structure assembly type joint. Steel clamping plates are arranged on the left side and the right side of the end of each wood component, steel filling plates are inserted into plate slots at the ends of the wood components, the wood components, the steel clamping plates and the steel filling plates are connected through common bolts, and steel teeth are arranged on the faces where the steel clamping plates and the steel filling plates are in contact with the wood components;and under the effect of bolt pretightening force, the steel teeth are embedded into the wood components, the steel clamping plates and the steel filling plates are connected with a core steel cylinderthrough high-strength bolts, and steel plate ribs are arranged in the core steel cylinder. Bolt holes are formed in the corresponding positions of the wood components, the steel clamping plates, thesteel filling plates and the core steel cylinder in a factory, the parts are assembled through the bolts on a construction site, and the assembly degree of the large-span wood structure is improved; and the steel teeth on the steel clamping plates and the steel filling plates enhance mechanical occlusal force among the steel clamping plates, the steel filling plates and the wood components, slipping between the wood components and the steel plates is reduced, the initial rigidity of the joint is improved, so that the joint is close to a rigid joint, and the joint can be applied to a hectometer-grade large-span wood structure.