Illegal. All kinds of organs, enterprises and institutions should strictly meet the requirements of internal epidemic prevention, bring third-party service outsourcing personnel into management, keep an eye on their own doors and manage their own people, although it is illegal to outsource personnel. In order to save costs, the company contracts the business that does not involve trade secrets to a professional company, which sends personnel to work in the company of the agreement party, and the professional company is responsible for the labor relations and salary payment of the dispatched personnel.