Caltech, founded in 189 1, is a private research university located in Pasadena, the northeastern suburb of Los Angeles, California, USA. The latest ranking is sixth. By August 2022, 76 alumni of California Institute of Technology had won the Nobel Prize, the highest in the world.

California Institute of Technology only enrolls about 240 undergraduates every year, including many excellent students from all over the world. It is difficult to attend classes at Caltech, and "stress" is synonymous with Caltech. Few other universities can catch up with the heavy academic burden, tight learning pace and heavy weight here.