A lateral driving faucet water outlet seat comprises a water input outer tube placed; a surface of the water input outer tube being formed with a confining portion; a lower clamping stop having a polygonal outer sides; a limiting unit having a hexagonal engaging portion extended from a lower side of the limiting unit for engaging with the outer side of the lower clamping stop; a top of the engaging portion being enlarged with a resisting ring; an inner edge being formed with a limiting portion at a position corresponding to the confining portion of the water input outer tube for confining the rotation of the water input outer tube; an upper clamping stop having a polygonal outer side; and a water outlet base placed upon an upper side of the combining object; the water outlet base having a water outlet hole for receiving the combining section.