In order to promote the deep integration of 5G mobile communication, Internet of Things, big data, blockchain, artificial intelligence and real economy, further implement the national "internet plus" and "Smart Plus" strategic action plans, actively create a good environment for "mass entrepreneurship and innovation" in the field of Internet of Things technology and applications in China, and guide college students to actively carry out collaborative innovation in information and communication technology and industrial applications. Innovative research on the key technologies and solutions of SmartServiceSystem (3S for short) by using the technical idea of Internet of Things can stimulate college students' innovative consciousness and entrepreneurial spirit, improve their ability to find, ask and solve problems in the field of Internet of Things technology and application, build a public welfare and open innovation platform, accelerate the transfer and transformation of scientific and technological achievements, and optimize the ecological environment for college students' entrepreneurial innovation. The 7th "Three Innovations (Creative Design, Innovative Technology, Entrepreneurial Scheme)" Competition was held by the Institute of Electronics of China and China Institute of Communication, for full-time graduate students and college students.