The invention discloses an assembly type prefabricated vertical member sleeve electric tracing heating system and a using method thereof. The assembly type prefabricated vertical member sleeve electric tracing heating system comprises a sleeve which is abutted to a steel bar which is arranged in an upper prefabricated member and extends outside downward and a steel bar which is arranged in a lower prefabricated member and extends outside upward; a grouting hole is formed in the lower half part of the sleeve; a slurry overflow hole is formed in the upper half part of the sleeve; the sleeve is provided with an electric tracing heating device which is composed of an electric heating element, a temperature sensor and a temperature controller which is connected with the electric heating element and the temperature sensor simultaneously; the electric heating element are wound on the outer surface of the sleeve to form a thermal resistance heat strip which is composed of two parallel metal wires, conductive plastic wrapping the two parallel metal wires and an external insulating layer wrapping the conductive plastic; and a probe of the temperature sensor measures current temperature of the sleeve or concrete in the sleeve and outputs the current temperature to the temperature controller. According to the assembly type prefabricated vertical member sleeve electric tracing heating system and the using method, the sleeve grouting technology can normally carry out construction at negative temperature, and the technical barrier that a prefabricated vertical member cannot carry out normal construction in winter is broken through.