A shaft radial magnetic flux fully superconducting synchronous motor relates to the field of motor which solves defects of a complex structure, a hard manufacture and lower reliability of a current motor. The magnetic conductive ring of the stator of the motor is an annular structure, wherein the middle of the annular structure is provided with an annular slot; an annular superconducting DC field copper component is embedded in the magnetic conductive ring; magnetic conductive yokes are 2p sector bodies with same shapes and sizes; the N poles and the S poles of the magnetic conductive yokes are arranged alternatively along the direction of the circle; magnetic conductive end rings are four cirque bodies; the inner diameters of the N pole magnetic conductive end rings of the magnetic conductive end rings are larger than the outer diameters of the S pole magnetic conductive end rings; the N pole magnetic conductive end rings and the S pole magnetic conductive end rings are respectively connected with the side surfaces of the sectors of the N pole magnetic conductive yokes and the S pole magnetic conductive yokes; air gaps are arranged between the N pole magnetic conductive end rings and the S pole magnetic conductive end rings oppositely. The motor of the invention has the advantages of a simple structure and without rotating superconducting pats, thereby simplifying the structure of the motor and guaranteeing a low temperature cooling system.