A contactless inspection apparatus of a heat pipe and a method thereof are provided. The disclosure controls an infrared heating module to heat a heat pipe to be inspected based on a heating parameter, and controls an infrared temperature measurement module to collect a measurement temperature data of the heat pipe. The disclosure monitors a temperature slope of the measurement temperature data during a heating procedure, calculates a score based on the temperature slope when the temperature slope is converged to a stop slope, and determines a quality of the heat pipe based on the score. The disclosure may inspect a conductive quality of the heat pipe.