The utility model provides an engine cooling liquid flow control valve, engine cooling system and car, wherein engine cooling liquid flow control valve includes the valve case, the valve case is injectd: first entry and the second entrance and at least one export, wherein, the control follow is set to first ball valve the fluid flow that first entry got into to the second ball valve is set control to and is followed the fluid flow that the second entrance got into, wherein first ball valve with the spherical case of second ball valve is arranged same epaxial to along with this rotation in order to adjust first inlet flow rate and the second entrance flow. According to the utility model discloses a various operating modes of flow in order to adapt to the engine of each flow path of the accurate control cooling system of engine cooling liquid flow control valve ability.