The year 2023 marks the 35th anniversary of the establishment of the Beijing Tandem Accelerator Nuclear Physics National Laboratory. Accelerators and nuclear reactors are the two main tools for studying nuclear science. In 1988, the Tandem Laboratory was officially founded, serving as a significant research hub for nuclear physics in our country. It has consistently played a leading role in nuclear science innovation, achieving 140 000 h of stable operation. The laboratory has undertaken research in nuclear physics research, nuclear data measurement, nuclear physics applications, and interdisciplinary studies. This has resulted in a series of internationally recognized basic and technological achievements that meet national major demands, fostering a group of outstanding talents. It has provided solid support for the continuous development of nuclear physics research and nuclear technology strategy in our country. This article provides a comprehensive overview of the 35 years of development of the Tandem Laboratory.