The renowned American master of handling affairs, P. Drucker, once pointed out: "Within 10 to 15 years, any business that only provides back-office support without generating revenue should be outsourced, and any activities or affairs that do not provide opportunities for senior management should also be outsourced." It should be said that this "human resource outsourcing" approach is a result of the development of the information industry, a manifestation of rapid social development and refined professional division of labor, and one of the signs of social civilization progress. Today, outsourcing has become a key strategy for companies to win in the business world.