The crowdsourcing platform of "Pay Only Online" is a flexible human resources platform built by Harbin Institute of Technology (Chengdu) Big Data Talent Development Co., Ltd., and it is one of the Internet big data platform products independently developed by relying on the core technology of Harbin Institute of Technology and Longyun Database. It is an AI intelligent duty-paid payment system integrating settlement, tax declaration and invoicing. It has a number of independent intellectual property rights and complete qualification certificates. Using big data +AI intelligent system to provide information for enterprises and freelancers all over the country, solve the problems of high labor cost of enterprises and national tax blind areas, realize the interconnection of enterprises, freelancers and taxation, help enterprises improve operational efficiency and reduce operating costs, thus achieving the multi-win goal of compliance operation of enterprises and individuals. Become a one-stop high-quality employment service provider enjoying the economy and new formats in China.