A faucet comprising a spray head, the spray head comprising a casing, a positioning member, a control valve, and an actuation device, and being connected to a water supply segment of a water supply pipe which is accommodated in a body of the faucet and includes a water channel; the spray head and the water supply pipe being suitable for being pulled out of and retracted back to an outlet of the body; the casing being configured to be held and pulled by a user and including a hole arranged thereon; the positioning member being secured in the casing and including at least one first through orifice formed thereon, and each of the at least one first through orifice communicating with the water channel of the water supply pipe and the hole of the casing; the control valve being housed in the positioning member and including a movable stem configured to turn on the control valve, such that water flows to the at least one first through orifice of the positioning member from the water channel of the house via the control valve; and the actuation device partially exposing outside the casing and being operable by the user so as to urge the movable stem of the control valve to move; characterized in that: the actuation device includes a press member and a driving member; wherein a first end of the press member is rotatably connected with the positioning member, and a second end of the press member is limited in the casing; wherein an intermediate portion of the driving member is rotatably coupled with the positioning member, a first end of the driving member is abutted by the press member, and a second end of the driving member pushes a push post included in the control valve; the casing includes a peripheral fence, an opening formed on the peripheral fence so that a part of the press member extends out of the opening to be pressed by the user; and the positioning member further includes a second through orifice corresponding to the opening and configured to accommodate a part of the actuation device; the second through orifice of the positioning member has two opposite first tabs and two opposite second tabs which are in relation to the actuation device; the press member has two first rotary shafts fixed on two sides of one end thereof, respectively, so as to rotatably connect with the two opposite first tabs, individually; the driving member has two second rotary shafts mounted on two sides of the intermediate portion thereof, respectively, so as to rotatably couple with the two opposite second tabs, individually. the actuation device includes a press member and a driving member; wherein a first end of the press member is rotatably connected with the positioning member, and a second end of the press member is limited in the casing; wherein an intermediate portion of the driving member is rotatably coupled with the positioning member, a first end of the driving member is abutted by the press member, and a second end of the driving member pushes a push post included in the control valve; the casing includes a peripheral fence, an opening formed on the peripheral fence so that a part of the press member extends out of the opening to be pressed by the user; and the positioning member further includes a second through orifice corresponding to the opening and configured to accommodate a part of the actuation device; the second through orifice of the positioning member has two opposite first tabs and two opposite second tabs which are in relation to the actuation device; the press member has two first rotary shafts fixed on two sides of one end thereof, respectively, so as to rotatably connect with the two opposite first tabs, individually; the driving member has two second rotary shafts mounted on two sides of the intermediate portion thereof, respectively, so as to rotatably couple with the two opposite second tabs, individually.