The principle of mutual concealment of relatives allows relatives to conceal or shield criminal behavior within a certain range without assuming criminal responsibility, and its history can be traced back to the Spring and Autumn Period and the Warring States Period. During the Han Dynasty, the principle of mutual concealment among relatives became a legal principle and was inherited by later generations. In 2012, the revision of China's Criminal Procedure Law exempted the obligation of direct relatives of the defendant to testify in court, reflecting the modern continuation of the concept of mutual concealment of relatives. There are also examples in the Analects that reflect the principle of mutual concealment between relatives, emphasizing the legitimacy of mutual concealment among relatives.