The future of a country is in the hands of the younger generation. College students are the hope of the country, the pillar and backbone of social and economic development, and their group quality has a great influence on society. In recent years, college students commit crimes frequently, such as the 2.23 mega-murder case in Ma Jiajue, Yunnan University and the bear throwing incident in Liu Haiyang, Tsinghua University. It can be seen that it is extremely important to strengthen college students' legal concept and cultivate their legal thinking mode. The concept of legal system refers to people's views and attitudes towards the legal system, and its core idea is the attitude towards handling affairs according to law. In today's society, a correct concept of legal system is an essential legal accomplishment for college students, and it has also become a basic requirement for young students to stand on the society. How to improve college students' legal concept? I think it can be done from two aspects: First, schools (1) offer legal courses to spread legal knowledge and guide the formation of college students' legal concepts. Ideas are not innate, and a person's legal ideas need to be gradually formed in a certain social environment and cultural atmosphere. Higher education should take improving college students' legal concept as an integral part of cultivating their quality, and attach importance to and actively improve their legal concept. (2) Strengthen case teaching, and help students to establish a correct legal concept by analyzing cases. Introduce some current affairs cases in class, such as Hu Changqing's bribery case and Yuan Hua's extraordinarily serious smuggling case. (3) Enrich the forms of legal education activities. Break through the classroom and infiltrate the legal system into college students' campus activities, such as holding lectures on legal knowledge, competitions and interesting questions.