A buckling module of a goggle device includes a buckling structure, a flexible belt body and an inserting member fixed on the belt body. The buckling structure has an accommodating space and an entrance in spatial communication with the accommodating space. The buckling structure includes a front positioning portion and a rear positioning portion both arranged at two opposite sides of the entrance. When a front end portion of the inserting member is inserted into the accommodating space by passing through the entrance, the front end portion moves toward an inner surface of the front positioning portion, and a first portion of the belt body adjacent to the front end portion is resiliently squeezed by the front positioning portion, so that the squeezed portion of the belt body drives a rear end portion of the inserting member to move toward an inner surface of the rear positioning portion.
