高科技竞争构成这个时代的新特点，当前，中日科技合作面临“三重变局”影响——中国科技创新发展势头一定程度超越日本、中美科技博弈加剧以及新冠肺炎疫情影响，如何在复杂国际局势下稳定与强化与日科技合作受到广泛关注。通过系统梳理中日科技合作的发展过程，并聚焦“三重变局”背景下双方科技交往进展，从官方合作与民间合作、科学研究合作与技术合作等分层次探讨了中日科技合作的新变化，可以发现：尽管中日科技合作基本上平稳发展，但是已然步入新的调整期，双方科技合作“政治色彩”趋浓，并存在诸多问题亟待解决。鉴于此，应强化政府间交流，以民间科技合作为着力点，把中日科技合作打造成为中日关系提质增效的重要引擎；围绕双方利益需求，全方位强化中日科技合作的支撑链条，努力化解分歧与冲突等。

High-tech competition is a new feature of this era, Sino-Japanese scientific and technological innovation cooperation is facing the impact of "three variations"--the development momentum of China's technological innovation has surpassed Japan, the intensified technological game between China and the United States, and the complex impact of COVID-19. How to stabilize and strengthen scientific and technological cooperation with Japan in the complex international situation has been widely concerned. By systematically combing the development process of Sino-Japanese scientific and technological cooperation, and focusing on the current situation of bilateral scientific and technological exchanges under the background of "three changes", this paper discusses the new changes of Sino- Japanese scientific and technological cooperation from the perspectives of official cooperation and non-governmental cooperation, scientific research cooperation and technical cooperation. In this context, although Sino-Japanese scientific and technological innovation cooperation is basically developing steadily, Sino-Japanese scientific and technological innovation cooperation has entered a new adjustment period and has new trends, the "political color" is more obvious, and there still remain many problems. In view of this, it is necessary to enhance governmental exchange, focus on non-governmental scientific and technological cooperation, and strive to resolve differences and conflicts.

中国社会科学院重大项目“‘一带一路’建设若干重大问题研究”(2019ZDGH)；中国社会科学院青年科研启动项目“第四次产业革命背景下中日科技创新合作研究”(2021YQNQD0068)阶段性成果。