The invention discloses a lever part machining process. The lever part machining process comprises the steps that 1, material cutting is performed by using a laser cutting machine; 2 appearance correction is conducted on a cut product by using a milling machine; 3, material finish milling is performed by using the milling machine; 4 a through hole in a range of phi 25 mm + 0.065 mm - 0.165 mm is milled by using the milling machine; 5 a hole is milled in the side face of a cylinder by using the milling machine; 6 further material machining is performed by using the milling machine; 7 inner barrier milling is performed at the other end of a material by using the milling machine; 8 circular arc milling is conducted on the material on two sides of an inner barrier by using the milling machine; 9 an elongated hole is milled in an R11 circular arc material; 10 chamfer machining is conducted on the material according to the drawing requirements; 11 surface polishing is conducted on the machined product; 12 paint spraying treatment is conducted on the machined product; 13 inspection and warehousing are conducted on the product. The lever part machining process meets the production requirement, improves the accuracy and strength of produced lever parts, meets the requirements and reduces defective rate and production cost.