Abstract: A head-mounted display, content loading method, and non-transitory computer readable storage medium thereof are provided. The head-mounted display selects a first multimedia content from a plurality of multimedia contents in response to receiving a switching signal, and the switching signal is generated based on determining that a user chooses to execute a new application program, and a playing content of the first multimedia content corresponds to the new application program. The head-mounted display transmits the first multimedia content to a display to play the first multimedia content on a plurality of pixels of a display screen.