Lawn mower comprising a quick connection apparatus for an accessory of the lawn mower, said quick connection apparatus comprises a power take off comprising a first pulley, a second pulley, a third pulley, a first tensioner, a second tensioner, a first belt and a second belt, said first pulley is keyed with a motor axis, said second pulley and said third pulley are keyed together with a return axis, said first pulley and said second pulley being linked through said first transmission belt, tension of said first belt is maintained by said first tensioner, said third pulley and a fourth pulley keyed with an accessory axis are linked through said second transmission belt, tension of said second belt is maintained by said second tensioner, said second tensioner is suitable for passing from a first position to at least one second position, in said first position said second tensioner is suitable for maintaining the tension of the second belt and for providing a power transmission between said third pulley and said fourth pulley, in said at least one second position said second tensioner is suitable for releasing the tension of said second belt and for not providing the power transmission between said third pulley and said fourth pulley characterized in that said second tensioner is pivoted with a third lever of the quick connection apparatus linked to a second leverages apparatus, said third lever is pivoted with a support frame, said third lever comprises a first extremity and a second extremity, said first extremity of the third lever engages a first extremity of a recall spring, a second extremity of the recall spring is mounted with the support frame, said recall spring is suitable for passing from a first relaxing position corresponding to the first position of the second tensioner to a second working position of the recall spring corresponding to said at least one second position of the second tensioner, said second extremity of the third lever engages a wire of said second leverages apparatus, said wire is linked with a second lever of said second leverages apparatus, said second lever is suitable for passing from a first position to a second position, said first position of the second lever provides that the second lever pulls the wire and corresponding to the first position of the second tensioner, said second position of the second lever provides that the second lever loosens the wire and corresponding to said at least one second position of the second tensioner, said quick connection apparatus comprises a lower interface frame hinged with said support frame, said lower interface frame is suitable for rotating about a pivot axis being transversal and being identified by pivotal housings (241, 242) of the support frame, said lower interface frame being its rotation bounded by a bond pin mounted with said support frame, said lower interface frame comprising at least two engaging longitudinal bars (26, 27) for engaging prolongations of said accessory, said quick connection apparatus comprises a cam which mounts said lower support frame with the support frame, said cam comprising an upper through hole suitable for slidably mounting a locking pin of the support frame in said at least one lifting position of the lower interface frame, said third lever comprises a lower wall which hangs downward in the vertical direction, said lower wall of the third lever mounts an extremity of a second portion of said locking pin.