The invention discloses a novel high-efficiency heat exchange pipe for the condenser of an electric refrigeration unit. The heat exchange pipe comprises a smooth pipe (7), a fin section (9) and a transition section (8) with a spiral fin. The heat exchange pipe is characterized in that the outside of the pipe body (1) of the fin section is provided with a spiral fin (2) which extends along the outer surface of the pipe body in a spiral manner; the outer diameter of the fin (2) is not more than that of the smooth pipe (7), the top (2B) of the spiral fin (2) is thinner than the root (2A), the upper ends of two side surfaces are smooth surfaces (3), the middle of the each side surface is provided with an inclined fin (4) which is 30-70 degrees to the pipe axis; the upper surface of each inclined fin (4) is a platform or an inclined plane, the side surfaces (4A, 4B) are trapezoidal, and one side surface (4A) is larger than the other opposite side surface (4B). The outside pipe condensation and heat exchange of the invention are reinforced; the discharge space of the condensate liquid is increased so that the condensate liquid can be fast discharged and the condensate liquid film can be expanded easily; and the turbulent flow and heat exchange in the pipe are reinforced so that the overall heat transfer efficiency can be obviously increased.