The author holds that kinship concealment, the exemption of legal responsibility for attestation and delation concerning crimes or offenses committed by a relative of the same family, is an age-old tradition in China s legal system, enjoys legitimacy and rationality to a great extent and is therefore the basis for modern legislation.

The thought that relatives shelter and hide each other is a part of Chinese ancient legal culture .

The system of relatives mutual concealment is an important legal system in ancient China,which has existed for thousands of years in China,and it still has positive lesson significance to legality construction of contemporary China.

The system of misprision of treason at the esistence of our country had more than two thousand years and in today\'s world,most of the countries on the continuing practice of the legal system,it has its deep structures and cultural spirit of the concept of basic support.