The invention relates to a voltage reference circuit. Aiming at the problems that an existing reference circuit needs resistors and is high in technology requirement and large in power consumption, a low power consumption non-resistor full CMOS voltage reference circuit is provided. According to the technical scheme, the low power consumption non-resistor full CMOS voltage reference circuit comprises a bias current module, a positive temperature voltage module, a negative temperature voltage module and a voltage superposition module. Voltage superposition is used for outputting voltage reference, and the temperature coefficient of the voltage reference is reduced through selection of filed effect transistor structural parameters. According to the low power consumption non-resistor full CMOS voltage reference circuit, power consumption is low, the resistors are not needed, any type of bipolar transistors are not needed either, and the integrated circuit can be manufactured by the adoption of a standard CMOS technology, so that the application range and flexibility are obviously improved.