The utility model discloses a strutting arrangement in big wall thickness high strength pressure steel pipe, including the mounting disc, a plurality of fixed stay mechanisms and a plurality of activities supporting institution, fixed stay mechanism includes a first bracing piece and a climbing mechanism, activities supporting institution includes second bracing piece and the 2nd climbing mechanism, a climbing mechanism and the 2nd climbing mechanism all include the mounting bracket and move the frame, the mounting bracket includes bottom plate and first curb plate, remove the frame including roof and second curb plate, the roof top is fixed with the jacking post, form the installation cavity between first curb plate and the second curb plate, be equipped with the jack in the installation cavity, a supporting rod outer end links firmly with the bottom plate of fixed stay mechanism, the 2nd supporting rod outer end links firmly with activities supporting institution's bottom plate, first bracing piece is inner to be linked firmly with the mounting disc, the second bracing piece is inner articulated with the mounting disc. The utility model has the advantages of simple structure and reasonable design and it is easy and simple to handle, can practice thrift a large amount of manpowers, financial resources and material resources, improved the construction progress, it is extremely low to manufacture the cost.