This paper explored a subject that was at once traditional and of innovativesignificance: the relationship between the frontier nationality in northeast China and thecentral dynasty.

Chinese northeast frontier s economy advantage and the strategic thought of re - exploitation;

All the work done in Qing Dynasty in the northeast frontier area had made great contribution to the construction and development of local area such as setting the management organization of garrison Eight Banners,accrediting Eight Banners officers and soldiers to develop the agriculture and control the local minorities tribes.

The articlesaid,except for mutual business trade that was the main trade method between Tang dynasty and frontier nationalities,during some series of developingfrontier,they may adopted force,political marries,giving some reputationand giving some gift,altogethergiving trade that kept a friendly political relationship between Tang dynasty and frontier was a kind of important trade metho