Abstract: The present invention discloses a basin mounting structure comprising a basin body (1), a set tube (2) disposed on the basin body (1), a coupling connector detachably connected to the set tube (2), and a positioning device for restricting the vertical movement of the coupling connector relative to the set tube (2). By disposing the set tube (2) on the basin body (1) and providing the coupling connector detachably connected to the set tube (2), when a faucet (4) will be mounted on the basin body (1), it is only necessary to place the coupling connector connected to the faucet (4) and/or a hose (5) into the set tube (2) and to position the coupling connector, and when the faucet (4) need to be detached, it is only necessary to make the positioning device to be free from restriction.