The invention discloses an advanced car engine device. The device comprises a base body, four foot columns are fixedly arranged on the periphery of the bottom end face of the base body, walking rollers are arranged on the bottoms of the foot columns, a vertical block is fixedly connected to the left side of the upper end face of the base body, a second sliding conveying block is arranged on the right side of the upper end face of the base body, a first transverse sliding conveying groove is formed in the center of the upper end face of the base body, the left end of a rotating shaft penetratesa rotating hole and is detachably and fixedly connected with a first grinding apparatus, the left end of the rotating shaft penetrates the rotating hole and is fixedly connected with a clamp, the right end of a transmission shaft penetrates a groove hole and is fixedly connected with a fixing combining disc, and the middle of a cutter shaft is fixedly sleeved with a second grinding apparatus. During operation, time and labor are saved, manual repeated clamp replacing is avoided, engine accessory machining precision is high, and shaft rod and casing pipe matching precision is high.