The invention relates to a power transmission tower and a power transmission tower supporting pillar. The power transmission tower comprises a tower body which is vertically arranged, and cross arms horizontally arranged on the top of the tower body. A supporting pillar is lengthways arranged at the bottom of the tower body. The supporting pillar comprises adhesives which are arranged radially from inside to outside, a reinforcing frame and an outer layer pipe. Mortar is arranged between the outer wall of the reinforcing frame and the inner wall of the outer layer pipe. The power transmissiontower supporting pillar combines the stress characteristics of the two materials, gives full play to the characteristic of a steel and concrete composite structure, and has the high pressure bearing capacity; and the capacity of the reinforcing frame and the outer layer pipe for local buckling local can be effectively enhanced, the lamellar tearing problem caused when thick steel plates are adopted is avoided, the problems in the process of processing or making the reinforcing frame and the outer layer pipe are smoothly solved, the production technology is simple, and the production cost is low.