Six　nature　minerals　and　six　self-made　sorbents　were　used　to　remove　alkali　metal　vapor　in　a　self-made　alkali　metal　vapor　removing　apparatus.　One　kinds　of　active　constitutes　of　self-made　sorbents　is　coal　ash,　which　XRD　results　indicate　that　coal　ash　has　the　property　to　remove　alkali　metal　vapor.　Results　proved　that　the　sorbent　reactivity　depends　on　not　only　its　content　of　active　constitutes　but　also　its　structure.　It　was　found　that　kaolinite,　activated　alumina　and　self-made　sorbent　GM6　are　very　efficient　for　alkali　metal　vapor　removal.