In　China,　the　method　of　indoor　air　sampling　is　according　to　GB/T　18883-2002.　When　sampling　in　a　big　room,　a　lot　of　samplers　and　materials　must　be　used.　And　in　indoor　environment　the　samples　using　this　method　are　often　not　so　representational.　Aiming　at　these　problems,　we　have　designed　the　automatic　sampler.　The　automatic　sampler　is　a　robot　which　is　based　on　the　traditional　sampler　and　able　to　move　freely　and　steer　clear　of　the　object.　In　use　of　this　kind　of　sampler,　energy　sources　and　materials　will　be　saved　greatly.　The　results　of　experiment　show　that　in　a　room　of　50-100m(2),　50%　of　the　energy　consumption　has　been　saved　in　use　of　the　automatic　sampler.　And　it　is　67%　in　a　room　which　is　more　than　100m(2).　When　sampling　in　a　room　less　than　50m(2),　compared　with　the　traditional　sampler,　50%　of　the　material　and　sampling　tubes　can　be　saved.　When　sampling　in　a　room　of　50-100m(2),　75%　of　the　material　and　sampling　tubes　can　be　saved.　And　in　a　room　of　more　than　100m(2),　it　is　83%.