On the afternoon of November 13, 2019, the party branch of 309 workshop organized party members to carry out the theme education of "Don't forget the original heart and keep the mission in mind" in the party member activity room of the workshop. The branch secretary Li Rui personally designed the party class for everyone and led the party members to review the hardships of the Chinese Communist Party. The history of struggle has strengthened party members’ awareness and self-awareness of knowing history, loving the party, and knowing history and patriotism, enabling them to consciously practice their original aspirations and missions, and effectively promote the theme education to go deeper and deeper.