Abstract: This paper udied the ore-forming condition and potention in southea part of Da Hinggan Ling Area. We used the elaborate technology of geophysical exploration to examine mineralizing areas, summarized the matallogenic rule and indications and founded ore-formating model depended on the new theory, the new method and technology. We consructed some work to validate the achievements and evaluated the future resources especially in Longtou shan, Lamahanshan and Haolibao area.