The utility model discloses a portable outdoor table capable of being spliced, and particularly relates to the technical field of outdoor tables, the portable outdoor table comprises a first outdoor table splicing plate, a second outdoor table splicing plate is inserted in the side edge of the first outdoor table splicing plate, and a stable sliding groove is connected in the first outdoor table splicing plate in a sliding mode. The outer end of the second outdoor table jointed board is fixedly connected with a stable sliding block; through mutual cooperation of the first outdoor table splicing plate, the inserting and embedding grooves, the limiting blocks and the springs, the first outdoor table splicing plate and the second outdoor table splicing plate only need to be pulled outwards, and therefore the bearing area formed by splicing the first outdoor table splicing plate and the second outdoor table splicing plate becomes larger; the first outdoor table jointed board and the second outdoor table jointed board are arranged in the first outdoor table jointed board and the second outdoor table jointed board, then the first outdoor table jointed board and the second outdoor table jointed board are supported through the supporting rods in the first outdoor table jointed board and the second outdoor table jointed board, so that the function of the outdoor table is achieved, the use area of the outdoor table is enlarged through outward pulling of the outdoor table, the supporting rods can be placed in the containing grooves, and the containing space is greatly saved.