PURPOSE: An internal pipe connection device capable of suitably applying a construction structure is provided to suitably apply high load on the construction structure and stand against the vibration due to supporting the pipes elastically. CONSTITUTION: An internal pipe connection device capable of suitably applying a construction structure includes a supporter(110) for supporting the pipe. A guide body(130) guides the movement of the supporter in a longitudinal direction and radial direction of the pipe. An operating body(150) operates the supporter by combining the guide body.
