September 20, 2023 to September 23, 2023. According to the inquiry, the national mathematics high school league shows that. 198 1 year, at the first national conference on the popularization of mathematics held in Dalian, it was decided to take the mathematics competition as a regular work of the Chinese mathematical society and the mathematical societies of all provinces, municipalities and autonomous regions. The national high school mathematics competition is a higher-level mathematics competition in China, and its status is much higher than that held by the provinces themselves. About 400 students from all over the country who have achieved excellent results in this competition are eligible to participate in the China Mathematical Olympics (CMO) sponsored by the Chinese Mathematical Society. The results of the National Mathematics High School League from September 20, 2023 to September 23, 2023 were announced.