Abstract: The Paints of SRB and G86,and black anodized A1 areused on satellite surface for thermal control.Because they are directlyin contact with the plasma environment in space.So the properties ofthe charges accumulated on their surface are very important to controlthe physical effects of arcing,discharging and breakthrough.So it willbe very important to evaluate the charging performance in the combinedsimulation space environment.In this article,the evaluation resultshave been given.The results indicate how to use and modify themcorrectly.