The embodiment of the application provides an automatic projection imaging correction method. The method comprises the following steps: obtaining a specified area image via a preset image collection device, wherein the specified area image comprises a projection mage of an original image and a screen image; determining vertex angle coordinates of the projection mage of the original image, and thevertex angle coordinates of the screen image; calculating a mapping proportion coefficient by using preset length values of side lines of the original image and the vertex angle coordinates of the projection mage of the original image; calculating the vertex angle coordinates of a target image by using the mapping proportion coefficient and the vertex angle coordinates of the screen image; and correcting the original image by using the vertex angle coordinates of the target image. According to the embodiment of the invention, no user operation is needed, so that the laser TV can be debugged without a professional debugger.