The information security of the supply chain is a part of enterprise information security. From the financial supply chain mentioned in the financial security action plan of the Financial Supervisory Commission to the suppliers of intelligent manufacturing components, all of them have an interlocking influence on the information security risks of enterprises. In this speech, the speaker will explain how to build a reliable information security service providing network, and in the meantime, how to meet the regulatory trend of the competent authority and the requirements of enterprise landing.