The utility model discloses a prevent with changeing oil pipe. This prevent with changeing oil pipe includes: pipe joints, its one end has the nut of tightening, the hose, its one end with pipe joints's the other end is connected for transmission fluid, and revolving wrong head, it is laid between pipe joints and the hose for it is fixed with the spanner cooperation. This prevent with changeing oil pipe adds between pipe joints and hose connection and revolves wrong head, follows commentaries on classics distortion with the fixed hose that prevents of spanner, ensures assembling process safety, boost efficiency, and has reduced operator's intensity of labour, has effectively prevented the hidden danger of oil pipe assembling process with commentaries on classics, distortion, promotes component assembly efficiency.