1. This thesis elucidates the narrow possessory lien on vessel.

2. Chapter three discusses possessory lien on vessel.

3. For the writer, possessory lien on vessel attains the priority in compensation, in order to fully protects the lienor's right and interest.

4. Establishment of the system of possessory lien on ship plays an important role in protecting the rights of maritime creditors effectively.

5. According to art25 of CMC, the possessory lien originally is set up to protect the interests of ship-builder and ship-repairer as a security on ship.

6. Possessory lien on ship is one of the most important contents of security right on ships.

7. Ship mortgage is also different from the ship preferred maritime lien and possessory lien.

8. Beginning with a case, this paper concludes that ship's possessory lien and the right to arrest a ship shouldn't be confused.

9. This paper, from the perspective of the practice of time charter, makes a research and discusses on the possessory lien to CMC. Finally, some opinions are put forward.

10. Where the trustor fails to pay the remuneration within the prescribed period, the trustee-trader is entitled to a possessory lien on the trust item, except otherwise agreed by the parties.

11. This paper, from the perspective of the practice of time charter, makes a research and discusses on the possessory lien to CMC.

12. In the preface, this dissertation briefly concerns a few of the hot disputes onthe possessory lien stipulated in the Code and illustrates the methods of study.

13. Chapter 2 mainly analyses the theories of legal foundations and the effect of possessory lien on ship.

14. Chapter 3 briefly discusses the reasons and the effects of extinguishment of possessory lien on ship.

15. The five part discusses the application of law in foreign possessory lien on vessel.

16. The thesis makes it clear that a maritime lien on vessel shall have priority over possessory lien on vessel and possessory lien on vessel shall have priority over a ship mortgage.

17. But there is no agreement about the nature of possessory lien on vessel.

18. The six part as the conclusion of this thesis, which summarizes the issues of possessory lien on vessel in this thesis.