Abstract: The part-time work system in China is in a dilemma with discriminations in working conditions as the main problem. The norms on many important working conditions in part-time work are ambiguous as employment laws mainly enacted according to typical employment encounter obstacles when applied to this atypical employment. Equal treatment principle is accepted as the guideline for the determination of working conditions in comparative law. This principle is not provisioned in employment law directly but it can be deduced indirectly by the explanation of law. Concrete working conditions should be determined according to this principle. Part-time workers should be ensured the wage calculated according to the same standard with that of comparable full time workers, that is, the sum of wage in proportion with actual working hours. Part-time workers should be ensured to get extra wage for prolonged working hours and to enjoy annual leave and disease leave.