Fixture of top mounting faucet

A fixture of a top mounting faucet comprising:

• a base having a circular wall abutting against a countertop, and a bottom wall and a mounting hole both mounted in the circular wall;
• the bottom wall provided with an insertion hole and a first stopping rod arranged at a bottom of the bottom wall;
• a threaded rod held by the insertion hole and a bottom of the first stopping rod of the base and rotatable;
• a moveable block rotatably threaded to the threaded rod and rotation of the moveable block limited by the first stopping rod;
• and
• a pressing hook having a first curved portion, a second curved portion, and a connection portion located between and connected with the first curved portion and the second curved portion;
• a rear end of the first curved portion pivotally connected to the moveable block so that the pressing hook is able to be turned and switched between an installation position and a tilt position at which the pressing hook is falling naturally;
• the first curved portion, the second curved portion, and the connection portion connected to one another form a mounting space among them;
• a notch formed between the rear end of the first curved portion and a rear end of the second curved portion and communicating with the mounting space;
• the first stopping rod and the threaded rod able to be inserted through the mounting space.