The distinguishing features of pension trust, including rights and interests separability, exclusive property, social welfare nature, long-term programming, professional, etc.

This paper expounds the concept and the important significance of the lower rent house trust fund,analyzes on the legal principle of the lower rent house trust fund,and based on this,advances some suggestions on relevant legal system construction.

This article mainly discuss some problems,such as capital scale,capital resource,system renewal and how utilize trust fund attracting the civilian capital.

It is a common difficult problem encountered by countries in the world that they must not only overcome the shortcomings due to difficult regulation,but also make full use of the advantages of efficient property management of trust fund.