A secure assembly structure for a furniture hinge buffer device is disclosed, comprising a movable hinge cup coupled to a furniture door panel, a securing member coupled to a furniture wall panel, a hinge arm configured to couple the movable hinge cup and the securing member, and an elastic member acting on the hinge arm; wherein the movable hinge cup is provided with a concave portion, the concave portion being provided with a buffer device, the buffer device comprising a buffer and a positioning member; wherein the positioning member is provided with a securing portion and is disposed on the concave portion via the securing portion, and the buffer is slidably positioned on the positioning member and/or the concave portion.