A multipurpose woodworking device, comprising a woodworking work table having a router performing concave-convex fabrication using a plurality of end mills, and jigs for fabricating a concave-convex structure, the jigs being coupled to jig-coupling holes formed on the woodworking work table, the jigs including a shaping guide jig guiding the router to form a shape corresponding to the concave-convex fabrication and a stopper jig keeping a movement of the router in X-axial direction within intervals corresponding to the concave-convex fabrication, characterized in that the shaping guide jig is a circle-forming guide jig for forming circular grooves and circular joints; and the stopper jig is a circle-forming stopper jig maintaining X-axial intervals of the circular grooves and the circular joints, wherein the circle-forming guide jig and the circle-forming stopper jig are configured to be mounted on the woodworking work table, and the jigs for fabricating a concave-convex structure are configured to form the circular grooves with intervals of the circle-forming stopper jig, with a first wood piece supported on the circle-forming guide jig and fixed on the woodworking work table, and to form the circular joints by the router moved along router guide protrusions of the circle-forming guide jig with a second wood piece to be combined with the first wood piece fixed to the circle-forming guide jig, wherein the router includes a router guide guided by the router guide protrusions, wherein the router guide protrusions are circular and protrude from the top of a guide jig body of the circle-forming guide jig. a woodworking work table having a router performing concave-convex fabrication using a plurality of end mills, and jigs for fabricating a concave-convex structure, the jigs being coupled to jig-coupling holes formed on the woodworking work table, the jigs including a shaping guide jig guiding the router to form a shape corresponding to the concave-convex fabrication and a stopper jig keeping a movement of the router in X-axial direction within intervals corresponding to the concave-convex fabrication, characterized in that the shaping guide jig is a circle-forming guide jig for forming circular grooves and circular joints; and the stopper jig is a circle-forming stopper jig maintaining X-axial intervals of the circular grooves and the circular joints, wherein the circle-forming guide jig and the circle-forming stopper jig are configured to be mounted on the woodworking work table, and the jigs for fabricating a concave-convex structure are configured to form the circular grooves with intervals of the circle-forming stopper jig, with a first wood piece supported on the circle-forming guide jig and fixed on the woodworking work table, and to form the circular joints by the router moved along router guide protrusions of the circle-forming guide jig with a second wood piece to be combined with the first wood piece fixed to the circle-forming guide jig, wherein the router includes a router guide guided by the router guide protrusions, wherein the router guide protrusions are circular and protrude from the top of a guide jig body of the circle-forming guide jig.