PURPOSE: An air variable capacitive condenser is provided to minimize the whole size by forming a pole board into thin film type which is externally insulated and arranging a plurality pole boards in the narrow space. CONSTITUTION: A fixing pole board(20b) is formed by sticking or compressing an electrode layer which is a conductor with a dielectric layer which is a non-conductor. A flow pole board(20a) is formed is formed by sticking or compressing an electrode layer which is a conductor with a dielectric layer which is a non-conductor. Two axis fixing boards(6, 7) are separately arranged as fixed distance. A supporting rod(30b) and rotating rod(30a) are fixed to the axis fixing boards. A coupling/motor coupling board(2) unites a motor(1) and a coupling(3).
