A high-temperature endoscope preventing impurities of an ingot growth apparatus from being deposited, according to one embodiment of the present invention, may comprise: a frame extending to the inside of a chamber of the ingot growth apparatus and having a gas discharge port provided at an end portion thereof through which an inert gas is discharged; a lens installed at the center of the end portion of the frame and protected by the inert gas discharged from the gas discharge port; and a guide tube installed on an outer surface of the frame and having a guide portion extending from the end portion of the frame so as to guide the inert gas to prevent impurities from being deposited on the lens by increasing a flow rate of the inert gas.