The article analyzes insider trading cases in China from the 1990s to 2017, comparing enforcement with other countries. China has increased efforts to combat insider trading, leading to more cases, especially criminal ones since 2008. The study shows that penalties in China are influenced by factors like illegal profits, social impact, and use of others' accounts for trading. China's enforcement of insider trading laws is on par with other countries, and the findings aim to inform future regulations in China and beyond.