The invention discloses a low temperature drift band-gap reference voltage source based on VBE linearization. Circuits comprise a PTAT current generation circuit, a high-order compensation band-gap reference circuit, a first starting circuit and a second starting circuit. The reference circuit builds a nonlinear term through the difference between two VBEs with different collector current temperature characteristics, then is overlaid with the VBEs to counteract the nonlinear term, and achieves the high-order compensation effect. The collector current of the zero temperature characteristic is formed by overlaying the two VBEs, subtracting voltage of one VBE and adding on the negative temperature coefficient current generated at two ends of a resistor R3 and the positive temperature coefficient current of delta VBE generated on a resistor R1, the temperature characteristic is not affected by output voltage precision, and the high-order compensation precision is ensured. Compared with a traditional VBE linearization method, the circuits adopt the voltage-mode output VREF, influence of current mirror mismatching and output resistor temperature characteristics on compensation precision is avoided, and therefore the reference voltage of the high precision and zero temperature coefficient is obtained, and the problems of low conversion precision and the like are solved.