A horizontal pushed aluminum alloy window with anti-falling mechanisms, comprising a window frame, a window sash embedded in the window frame, and a pair of hinge mechanisms connecting the hinge mechanisms to the window frame, the window frame comprises a first mounting member comprising a first mounting surface located an inner side of the window frame, the window sash comprising a second mounting member corresponding to the first mounting member and comprising a second mounting surface located an outer side of the second mounting member and corresponding to the first mounting surface, characterized in that, the hinge mechanisms comprising a plat strip guiding rail and a plat strip supporting arm, the first mounting member comprising a first fixing plate and a first sliding plate corresponding to the first fixing plate, the first fixing plate comprising a first anti-falling rib extending from a side of one end of the first fixing plate face to the first sliding plate, the first sliding plate comprising a first anti-falling rib extending from a side of one end of the first sliding plate face to the first fixing plate and corresponding to the first anti-falling rib of the first sliding plate, the first sliding plate, the first anti-falling rib of the first sliding plate, the first fixing plate, the first anti-falling rib of the first fixing plate, and the first mounting surface surrounding a T-shaped first mounting groove, the second mounting member comprising a second fixing plate and a second sliding plate corresponding to the second fixing plate, the second fixing plate comprising a second anti-falling rib extending from a side of one end of one end of the second fixing plate face to the second sliding plate, the second sliding plate comprising a second anti-falling rib extending from a side of one end of the second sliding plate face to the second fixing plate and corresponding to the second anti-falling rib of the second sliding plate, the second sliding plate, the second anti-falling rib of the second sliding plate, the second fixing plate, the second anti-falling rib of the second fixing plate, and the second mounting surface surrounding a T-shaped second mounting groove, the first sliding plate comprising a first limiting portion vertically extending from another end of the first sliding plate, the first mounting member defining a first connecting groove and a first limiting groove, the first sliding plate being received in the first connecting groove, the first limiting portion being movably received in the first limiting groove, the second sliding plate comprising a second limiting portion vertically extending from a side of the second sliding plate, the second mounting member defining a second connecting groove and a second limiting groove in communication with the second connecting groove, the second sliding plate received in the second connecting groove, the second limiting portion movably received in the second limiting groove, a width of the first limiting portion being smaller than a width of the first limiting groove, a width of the first connecting groove being greater than a sum of a width of the first anti-falling rib of the first fixing plate and a width of the first anti-falling rib of the first sliding plate, a width of the second limiting portion being smaller than a width of the second limiting groove, a width of the second connecting groove being greater than a sum of a width of the second anti-falling rib of the second fixing plate and a width of the second anti-falling rib of the second sliding plate, the first mounting member comprising a first firming portion inserted into the first connecting groove between the first sliding plate and an inner wall of first connecting groove, the second mounting member comprising a second firming portion inserted into the second connecting groove between the second sliding plate and an inner wall of second connecting groove, wherein the guiding rail is received in the first mounting groove, and the supporting arm is received in the second mounting groove.