A system and method for relieving high blood sugar factor of diabetes includes an electric energy wave generator with a frequency effect level control mode. The frequency effect level control mode includes a control of a single frequency effect period and a control of a multi-frequency modulation effect period and controls and emits a single frequency electric energy wave to a diabetic patient's body in the single frequency effect period according to the frequency effect level control mode and controls and emits a multi-frequency electric energy wave in a multi-frequency modulation effect period, so as to reduce and eliminate a high blood sugar factor of the diabetic patient's body by the electric energy wave.