The Heart Source Project is an urban emotional drama starring Liu Yizhi, director and Leo, and starring Xu Kaicheng, Sun Jiayu and Ding. The play is based on Miao Juan's novel The Agent. This paper mainly tells the story of Qiu Jianing and Zhou Xiaoshan, the core researchers of the Source Project Laboratory, weighing the trade-offs between love and ideal from acquaintance, knowing each other and falling in love.

Qiu Jianing, female scientist, is the core researcher of the "Source Project" laboratory of a famous pharmaceutical group in China. She is bent on solving problems, proving her strength to the scientific community and establishing the status of the motherland in the biological science community. In the clinical stage of the experiment, Zhou Xiaoshan, a new researcher, came to the laboratory.

Zhou Xiaoshan's wisdom and introversion attracted Qiu Jianing's attention, and Qiu Jianing's beauty and strength also disturbed Zhou Xiaoshan's peaceful heart lake. But Zhou Xiaoshan's real identity is a broker, and his arrival is to take away Qiu Jianing's scientific research achievements.

However, Jianing has a lofty pattern and devoted herself to her career. Inspired by the older generation of scientists, she resolutely defended the scientific research achievements of the motherland. In this process, her persistence in her career and her sense of justice for the country also infected Zhou Xiaoshan. In the end, Jianing and Xiaoshan completed their research together, winning glory for the country.