1. This article considers repeated mortgage means that a mortgager establishes the mortgage to two or more rights of claim within the same range of value for the same property.

2. Just giving mortgager the claiming right or recoursing right is not enough to protect the mortgager's interests.

3. When mortgager loses the mortgaged property while claiming his mortgage right, he or she should he given compensation.

4. The thesis discusses the legal efficacy of the limitation to the mortgager and the protection to the right of the person holding the hypothec after the mortgage is set up according to law.

5. Being-built house mortgage refers to such a legal act that mortgager transfer his Expectant Property Right according to the presale contract of commercial building to the bank for getting a loan.