There is a noticeable phenomenon of unmarried cohabitation in universities, which influences the student s studies and brings inconvenience to the school management work.

On Legal Protection of Unmarried Cohabitation;

Although fierce arguments were raised among UK society on whether and how law gets involved in unmarried cohabitation,unmarried cohabitation has been recognized and protected by family law step by step.

recent years, the traditional thoughts of marriage and family has received big challenge continuously, the increasing of unmarried cohabitation is its main performance.

For the personal and property relationship and rightful heir of children arising from non-marital cohabitation,a legal system different from lawful marriage or de facto marriage should be constructed,aimed at achieving legal regulation.

As a social problem,non-marital cohabitation is adjusted by early codes such as: "Hammurabi Code," "Mount Merino Code," Early legislations took a free and tolerant attitude towards non-marital cohabitation.

The consequences of non-marital cohabitation have been adjusted by only a small number of laws.

In modern society,non-marriage cohabitation has been accepted as a kind of life style by more and more people.

As a social phenomenon, the non-marriage cohabitation has to be supervised by morality and system.

However, people in different estate has different attitude to non-marriage cohabitation.