The non-isothermal crystallization kinetics of polyethylene glycol (PEG) was studied with differential scanning calorimetry. The non-isothermal crystallization data of PEG was analyzed by the methods of Ozawa, Jeziorny, and MO Zhi-shen. Results show that the non-isothermal crystallization process of PEG may be described with Ozawa kinetic equation, but does not agree with Avrami equation processed in the Jeziorny method. The linearity of treating non-isothermal crystallization kinetic curves with Ozawa method and MO Zhi-shen method is better. Parameter of crystallization velocity for PEG is 0.098.