Head-mounted display device

A head-mounted display device, comprising:

• a body, having a first lens seat and a second lens seat, respectively used to accommodate a first lens and a second lens corresponding to both eyes, wherein an inner sidewall of the first lens seat has a first combining portion, an inner sidewall of the second lens seat has a second combining portion, the first combining portion comprises a first elastic retraction portion, the second combining portion comprises a second elastic retraction portion, a sidewall of the first lens has a third combining portion, and a sidewall of the second lens has a fourth combining portion;
• a first optical lens set, installed in the body and corresponding to the first lens seat;
• and
• a second optical lens set, installed in the body and corresponding to the second lens seat, wherein
• when the first lens is assembled to the first lens seat, after the third combining portion of the first lens pushes away and passes through the first elastic retraction portion, the first elastic retraction portion is restored, the third combining portion is combined with the first combining portion, and a gap is maintained between the first lens and the first optical lens set,
• when the second lens is assembled to the second lens seat, after the fourth combining portion of the second lens pushes away and passes through the second elastic retraction portion, the second elastic retraction portion is restored, the fourth combining portion is combined with the second combining portion, and a gap is maintained between the second lens and the second optical lens set.