Abstract: The focus on the verification for 1:50 000 aerom agnetic anomaly is on east and west sides of dimnalic iron ore deposit,in the south of altun major faulted zone.Based on investigations,it has been verified that all aeromagnetic anomaly of new C-2008-2200,C-2008-2203,C-2008-2202,C-2008-2220,C-2008-2221 and new C-2206,C-2207,C-2208 in Dimnalic mine exists in phyllite of flysch microlithon of Changshagou tectonic ophiolite complex belt,the south side of Altun major fault zone; and has been confirmed that the Dimnalic Iron ore zone is 50 000 m Incont rolled lenth,within which Yulin iron deposit in Qiemo county has been found in C-2200,C-2201 and C-2202; and Hesu iron deposit found in Ruoqiang county; and so it is determined the aeromagnetic anomaly of new C-2008-C-2196,C-2008-2198,C-2008-2199,C-2008-2230 and 2280 should be further verified for prospecting.