The invention discloses a customized tongue-side orthodontic bracket and a manufacturing method thereof, the tongue-side orthodontic bracket comprises a spherical-crown shaped bracket body defined by a tooth-directional surface and a tongue-directional surface, a sunken portion is provided in a middle area of the tongue-directional surface of the bracket body, an upper wing, a lower wing and a groove are provided in the sunken portion, an arc-shaped outline between the tongue-directional surface of the bracket body and the outer surfaces of the upper wing and lower wing is still maintained, and the manufacturing method of the bracket mainly comprises the following steps: firstly establishing a virtual bracket body in a computer and setting a center line of the groove, obtaining a tooth arrangement model of an ideal tooth arrangement, determining a virtual position of the groove placed, matching the center line of the groove with the virtual position of the groove placed, rotating the bracket body around the center line, adjusting the thickness of the bracket body, and finally cutting out a groove along the center line to obtain a bracket body with a groove, generating the entity bracket by 3D printing； and as the tongue-directional surface of the whole bracket body is made to be arc-shaped, the stimulus to the tongue body can be greatly reduced and the comfort of a patient can be increased.
