The invention discloses a ball valve with a long service life. The ball valve comprises a valve body, a valve element, a valve rod and a handle, a driving piece is fixed on the valve rod, a driving groove is formed in the driving piece, the distances between the two ends of the driving groove and the axis of the valve rod are different, a sleeve is arranged in the valve body in a sliding mode, a sealing ring is arranged on the end face, facing the valve element, of the sleeve, a driving rod is arranged on the sleeve, and the driving rod penetrates into the driving groove. When the ball valve moves from a conducting state to a closing state, the driving piece drives the driving rod to slide through the driving groove, so that the sleeve drives the sealing ring to be tightly pressed on the valve element. The ball valve with the long service life has relatively good sealing performance, meanwhile, the service life is long, and the mechanism action reliability is high.