A faucet counter-top installation kit, comprising: - a faucet body adapted to be positioned on a counter; - a screw sleeve fitted inside an installation hole on the counter and used to install the faucet body; - a mounting seat; and - at least two sliders for limiting axial displacement between the counter and the screw sleeve; - wherein the mounting seat is in connection to the periphery of the screw sleeve in a manner that the mounting seat surrounds as least a part of the periphery of the screw sleeve; - wherein the screw sleeve is provided with a hollow inner cavity; - wherein the periphery of the screw sleeve which corresponds in installed state to the position below the counter is provided with at least two through holes (3.2) that allow the sliders to slide outward from the inner cavity of the screw sleeve; - wherein the installation kit further comprises an auxiliary installation tool for driving the sliders to protrude from the through holes (3.2) to achieve an axial limiting function of the sliders; - wherein the auxiliary installation tool can slide in the inner cavity of the screw sleeve so as to drive the sliders; characterized in that the bottom of the auxiliary installation tool is provided with a horizontally arranged bearing part (2.1) to support the sliders to directly correspond to the through holes (3.2) in the inner cavity of the screw sleeve; and in that above the bearing part (2.1) are sequentially arranged: a connecting part (2.2), a transition part (2.3) of an inverted frustum shape used for obliquely guiding when the auxiliary installation tool is moved downwards along the inner cavity of the screw sleeve, and an opening part for pushing the sliders from inside the through holes (3.2) until they are in place, wherein the diameter of the opening part is larger than that of the connecting part (2.2). - a faucet body adapted to be positioned on a counter; - a screw sleeve fitted inside an installation hole on the counter and used to install the faucet body; - a mounting seat; and - at least two sliders for limiting axial displacement between the counter and the screw sleeve; - wherein the mounting seat is in connection to the periphery of the screw sleeve in a manner that the mounting seat surrounds as least a part of the periphery of the screw sleeve; - wherein the screw sleeve is provided with a hollow inner cavity; - wherein the periphery of the screw sleeve which corresponds in installed state to the position below the counter is provided with at least two through holes (3.2) that allow the sliders to slide outward from the inner cavity of the screw sleeve; - wherein the installation kit further comprises an auxiliary installation tool for driving the sliders to protrude from the through holes (3.2) to achieve an axial limiting function of the sliders; - wherein the auxiliary installation tool can slide in the inner cavity of the screw sleeve so as to drive the sliders; characterized in that the bottom of the auxiliary installation tool is provided with a horizontally arranged bearing part (2.1) to support the sliders to directly correspond to the through holes (3.2) in the inner cavity of the screw sleeve; and in that above the bearing part (2.1) are sequentially arranged: a connecting part (2.2), a transition part (2.3) of an inverted frustum shape used for obliquely guiding when the auxiliary installation tool is moved downwards along the inner cavity of the screw sleeve, and an opening part for pushing the sliders from inside the through holes (3.2) until they are in place, wherein the diameter of the opening part is larger than that of the connecting part (2.2).