The invention relates to an oil seal press fitting detection production line. The production line comprises a feeding device, an oil seal press fitting device, a height and parallelism detection device, an airtightness detection device, a separation device and a transfer device in sequence, wherein the feeding device, the oil seal press fitting device, the height and parallelism detection device, the airtightness detection device, the separation device and the transfer device are subjected to whole-process control of a computer respectively. According to the oil seal press fitting detection production line, computer integrated control is adopted, so that the automation degree is high, the detection accuracy is high, the machining efficiency is greatly improved, the labor intensity of workers is reduced, the parallelism, the height, the verticality and the airtightness of a product are guaranteed, and the defective rate of the product is reduced.