An opening limiting mechanism of a furniture hinge comprises a movable cup seat and a connecting arm. The movable cup seat is arranged on a furniture door body, the connecting arm is arranged on a furniture body, the movable cup seat is connected with the connecting arm through rocker arms, the rocker arms comprise an outer rocker arm and an inner rocker arm, a limiting piece is arranged between the outer rocker arm and the inner rocker arm, and the hinge limits the opening position through the limiting piece at least in the opening process. The limiting piece is arranged between the outer rocker arm and the inner rocker arm on the basis of not changing the original structure of the hinge, the inner rocker arm is in contact and connection with the limiting piece and is located with the limiting piece at least when the hinge is opened to a certain position, the opening position of the hinge is limited, and therefore the opening angle of the door body is changed. An adjusting device is arranged on the limiting piece, a user can adjust the relative position between the inner rocker arm and the limiting piece according to needs, the effect of changing the opening angle of the door body at any time is achieved, and strong practicality is achieved.