An aircraft pylon, comprising a front installation joint integrated with the aircraft pylon, wherein the front installation joint is integrally formed with a front end frame of the aircraft pylon and the front installation joint comprises: a first lug and a second lug respectively protruding outward from two opposite sides of the front end frame; and a first link and a second link respectively connected to the first lug and the second lug at one end, and respectively adapted to be connected to an aero-engine at the other end; wherein the first link and the first lug are pivotally connected at a first connection point, and the second link and the second lug are connected respectively at a second connection point and a third connection point; wherein the first link is further connected to the first lug at a fourth connection point, and the fourth connection point and the second connection point are arranged opposite to each other and respectively located inside the first connection point and the third connection point, wherein a connecting bolt running through the first link at the fourth connection point is clearance-fitted with the bushing disposed in the mounting hole of the first lug at the fourth connection point; wherein the connecting bolt at the fourth connection point is clearance-fitted with the bushing with a first clearance, and the first clearance is set in a way that when any one of the first connection point, the second connection point and the third connection point fails, the connecting bolt at the fourth connection point partially contacts with the bushing; wherein the front installation joint further comprises a third lug protruding outward from a front wall of the front end frame and a third link having one end connected to the third lug at a fifth connection point and the other end adapted to be connected to the aero-engine, and a connecting bolt running through the third link at the fifth connection point is clearance-fitted with a bushing disposed in a mounting hole of the third lug at the fifth connection point; and wherein the connecting bolt at the fifth connection point is clearance-fitted with the bushing with a second clearance, and the second clearance is greater than the first clearance and set in a way that when the first link or the second link completely fails, the connecting bolt at the fifth connection point partially contacts with the bushing. a first lug and a second lug respectively protruding outward from two opposite sides of the front end frame; and a first link and a second link respectively connected to the first lug and the second lug at one end, and respectively adapted to be connected to an aero-engine at the other end; wherein the first link and the first lug are pivotally connected at a first connection point, and the second link and the second lug are connected respectively at a second connection point and a third connection point; wherein the first link is further connected to the first lug at a fourth connection point, and the fourth connection point and the second connection point are arranged opposite to each other and respectively located inside the first connection point and the third connection point, wherein a connecting bolt running through the first link at the fourth connection point is clearance-fitted with the bushing disposed in the mounting hole of the first lug at the fourth connection point; wherein the connecting bolt at the fourth connection point is clearance-fitted with the bushing with a first clearance, and the first clearance is set in a way that when any one of the first connection point, the second connection point and the third connection point fails, the connecting bolt at the fourth connection point partially contacts with the bushing; wherein the front installation joint further comprises a third lug protruding outward from a front wall of the front end frame and a third link having one end connected to the third lug at a fifth connection point and the other end adapted to be connected to the aero-engine, and a connecting bolt running through the third link at the fifth connection point is clearance-fitted with a bushing disposed in a mounting hole of the third lug at the fifth connection point; and wherein the connecting bolt at the fifth connection point is clearance-fitted with the bushing with a second clearance, and the second clearance is greater than the first clearance and set in a way that when the first link or the second link completely fails, the connecting bolt at the fifth connection point partially contacts with the bushing.