The American College Student Mathematical Modeling Competition (MCM/ICM), sponsored by the American Federation of Mathematics and Its Applications, is the highest-level mathematical modeling competition in the world and the most influential mathematical modeling competition in the world. The content of the competition involves many fields such as economy, management, environment, resources, ecology, medicine and safety. The competition requires 3 people (both undergraduate and graduate students can participate) to complete all the work from modeling, solving and verifying the specified problem to writing the paper within 4 days, which reflects the ability of the contestants to study problems and solutions and the spirit of teamwork. He is the originator of all kinds of mathematical modeling competitions today.