The invention provides a self-propelled underground boring jumbo. The jumbo comprises a rack, a platform, an upper platform, transition platforms, a cross beam, a travelling mechanism and cantilevers and the like, wherein the rack is an open-web-type frame and arranged on the travelling mechanism, the cross beam is arranged on the rack, the platform is arranged on the cross beam, the two side end parts of the platform in the width direction thereof are connected to the rack through brackets, an arc orbit and a cantilever are respectively arranged on the platform and at the two ends of the platform along the length direction of a tunnel, the upper platform is arranged above the platform, a transition platform is respectively arranged above the platform and on the left and right sides of the a position below the upper platform, and a hoisting device is arranged between the cantilevers at the two ends of the platform and below the upper platform. The jumbo is reasonable in structure and low in manufacturing cost, and can solve the traffic problem in tunnels, achieve an effect of synchronously carrying out boring, transportation and other operations, reduce the repeated installation of boring equipment and the transportation and removal of framed bents, increase the constructable distance of boring equipment, increase the time of boring operation, greatly improve the operating efficiency, and shorten the construction period.