Automatic positioning projector and automatic positioning method

The invention discloses an automatic positioning projector and an automatic positioning method. The automatic positioning projector comprises a projector body, a lens, a lens adjusting mechanism, a photosensitive sensor and a communication module, wherein the lens is arranged on the lens adjusting mechanism, and the lens adjusting mechanism is arranged on the projector body; the lens is connected to the projector body; and the photosensitive sensor is connected to the communication module, and the communication module is wirelessly connected to the projector body. According to the automatic positioning projector and the automatic positioning method, the position of the projector can be automatically calibrated without manually adjusting the projector before each use, the projector is convenient and efficient to use, and automatic positioning is accurate and simple.