The commencement of prescription period is a principal component of a prescription regime. However, the related provisions in Chinas Civil Law regime are of great curtness. Contractual claim is one of the most important claims, doing classifying analysis on it from the perspective of interpretation theory, and trying to strike the balance between the creditors and the debtors from the legislative skills aspect and providing a model for analyzing the commencement of all types of prescription periods. Moreover, it can relieve the tensions between prescription regime and Chinese traditional legal culture, which will be helpful to achieve the localization of prescription regime.