The utility model provides an automatic overlap joint template of overturning of circular hole room steel mould trolley footing, it includes first backup pad, second backup pad and third backup pad, first backup pad, the forming framework body structure is connected at two liang of mutually perpendicular of edge to second backup pad and third backup pad, the head and the tail both ends of second backup pad respectively with first backup pad, the third backup pad is connected, the third backup pad is connected with steel enclosing purlin, the pterygoid lamina sets up the bolt hole under the steel enclosing purlin, adjusting bolt and steel enclosing purlin are connected, the last pterygoid lamina of steel enclosing purlin is connected with hydraulic telescopic cylinder through the hydraulicconnection board that sets up, a blade of articulated hinge is connected with the second backup pad. The utility model discloses can seam technical problem not tight, platform, the hourglass thick liquid condition by mistake appear the solution now easily when being under construction the lining cutting of circular hole room.