It has been proved that the basic changes in post-Islam coin minting have been occurred in Ilkhanid era; therefore a survey on the time coins may help us understand the changes and econopolitical situation of the era. In this research, we have applied the non-destructive PIXE method to test 32 Ilkhanid coins belonging to various rulers. The highest and the lowest silver percent’s in Damghan were related to Ghazan, and Tegudar and Arghun, respectively. Regarding the conditions of the coins in Arghun era, we may conclude that he had been engaged in the area's conflicts. Most of the coins have mostly close roots, except for two cases.