The utility model discloses an oil pan with oil drain grooves. The oil pan with the oil drain grooves has a structure that strip oil drain grooves are arranged on the bottom surface of the oil pan, and by taking the bottom surface of the oil pan as a horizontal surface, the inclination angle alpha of the strip oil drain grooves from the bottom surface of the oil pan to oil drainage ports of the strip oil drain grooves is 20 DEG. According to different types of the oil pans, the strip oil drain grooves can be two, three or four. When the engine oil is in need of replacement, the waste engine oil quickly flows to the oil drainage ports along slopes of the strip oil drain grooves, so as to be completely drained. The oil pan with the oil drain grooves has the characteristics that the oil drain grooves are designed between the bottom surface of the oil pan to the oil drainage ports, while quick and complete effects of drainage of the oil pan are ensured, the structure of the oil drain grooves plays remarkable vibration and noise reduction effects on the oil pan. The oil pan with the oil drain grooves has a simple structure and low cost, and is applied to and matched with the oil pans with various types.