The invention discloses a portable stable scaffold. The portable stable scaffold comprises stand rods and cross rods, and further comprises base mechanisms. The base mechanisms comprise bases and fixing rods, threaded rods are arranged at one ends of the fixing rods, threaded nails are arranged at the other ends of the fixing rods, and through holes II are formed in the bases in a distributed mode; threaded rods I with the same inner diameter and thread as the threaded rods are arranged on the upper end parts of the stand rods, the length of the threaded rods is greater than the length of thethreaded rods I, threaded holes I matched with the threaded rods and the threaded rods I are formed in the lower end parts of the stand rods, at least one cube connecting member is arranged on the stand rods, threaded holes II are formed in four surfaces of the cube connecting members, and the cube body connecting members are integrally formed with the stand rods; threaded rods II matched with thethreaded holes II are arranged on two end parts of the cross rods, and threaded rods II are screwed into threaded holes II; and carrying plates are arranged between the adjacent cross rods. The connecting members of the portable stable scaffold are integrally formed with the stand rods, overall transportation, management, construction and disassembly are convenient, the condition that the connecting members are prone to losing is prevented, and the arrangement of the base mechanisms increases the stability of the portable stable scaffold.