The amblyopia treatment device is useful, and the use of amblyopia treatment device for amblyopia is more effortless than the traditional “masking therapy”. The principle of amblyopia treatment is to simulate a clear object and let it fall on the retina to achieve the purpose of amblyopia treatment. Because the amblyopia treatment instrument will actively adjust the distance of the object from the eye, so that the image of the object on the retina becomes a clear focus to achieve the purpose of treatment. The specific method of use varies depending on the type of instrument, and probably includes: (1) multi-frequency multi-color light alternating flicker stimulation method: using red, green and blue light alternating flicker to stimulate the visual cone cells to promote visual development; (2) CAM grating visual stimulation method: using black and white grating of different frequencies as a visual stimulation source to enhance the development of central cells and improve visual acuity; (3) posterior image training method: applicable to non-central gaze amblyopia, obscuration, and other visual stimulation methods. (3) central gaze amblyopia, covering the retina within 3 degrees of the central macular recess, so that the strong light flares the retina beyond 3 degrees of the central macula, relatively improving the central recess gaze, so that non-central gaze is transferred to central gaze; (4) music-assisted therapy: can enhance the treatment attention, so that the brain function in the best state. Therefore, amblyopia therapy device is an option for the treatment of amblyopia.