An access terminal box includes a base plate, wherein a first fastening part, a second fastening part, and a fastening lever that are configured to fasten the access terminal box to a mounting plate disposed on the base plate, a through hole is disposed on the second fastening part, the fastening lever includes a head part, a body part, and an elastic part, the head part is connected to the body part, one end of the elastic part is connected to the head part, the body part and the elastic part are located inside the through hole, and the head part is exposed at a first outlet of the through hole.