Abstract: The present invention discloses a fiber-optic terminal box, which includes a housing and a connecting assembly, wherein the housing is provided with a plurality of connecting holes and insertion channels, the connecting assembly is detachably connected to the housing by means of the connecting holes, and the insertion channels are configured for a third-party fiber-optic connecting device to be inserted for connection to the fiber-optic terminal box. The connecting assembly includes a knob, a connecting component and a reset component, wherein a connecting portion having a preset length is axially provided on a peripheral side of the knob, a fitting portion fitting with the connecting portion is provided on a peripheral side of the connecting component, the reset component is sleeved on an outer side wall of the knob and moves synchronously with the knob, and the connecting hole is provided with a slot fitting with the reset component.