This　paper　describes　software　architecture　of　a　spatial　database　for　pocket　computers,　its　spatial　query　language　named　GSQL　and　some　techniques　to　improve　its　performance.　Some　GSQL　query　examples　are　also　included..　Based　on　this　architecture　and　its　query　language,　a　spatial　database　prototype　has　been　built　to　verify　its　implementation　feasibility　in　lightweight　Pocket　PC.　In　the　last　section　of　this　paper,　conclusions　and　further　research　outlook　for　a　distributed　pocket　spatial　database　are　discussed.