政治史上的王安石是極具爭議性的人物，其引導的熙寧變法，規模宏大，但功過始終難以定論。《詩經》學史上的王安石以矜誇新義著稱，但論及其領銜著作的《詩經新義》之成就與價值，古今學者給予的評價並不一致，然整體而言仍以負面性的批判居多。由於《詩經新義》是熙寧變法下的產品，故本文探究王安石解《詩》的詮釋精神與特質，從政治史、學術史、經學史等多重面向來進行考察，不僅要關注《詩經新義》，也將《周禮新義》與《文集》視為重要文本，以求真相能真實浮現。根據本文的研究，王安石為了貫徹朝廷統一經義，以使義理歸一的要求，故《詩經新義》以「法」解《詩》的意圖相當明確；為了落實其經典致用化的理念，王安石一方面在解釋的細部內容中不斷自出新義，一方面又尊《序》以為解《詩》法式，且又將三百篇與《禮》結合，提出「《詩》、《禮》相解」的主張，而《詩》、《禮》相解也是王安石天道性命學說的發揮。當然，既要保守，又要創新，《詩經新義》中必然出現牽強附會的解釋，其引起研《詩》學者的譏評，也是可以預期的。

Wang An-Shih is a controversial figure in Chinese political history. His Xi-Ning Reform Movement is on a grand scale, but it is difficult to conclude whether it is a more positive or negative influence. In the history of Classic of Poetry studies, Wang is well-known for his pride in his innovative interpretation, but his New Interpretation of the Classic of Poetry receives far more criticism than praise. In view of the fact that the New Interpretation is a product of the Xi-Ning Reform Movement, this study investigates its spirit and characteristics from the aspects of political history, academic history, and history of studies on Confucian classics. Besides the New Interpretation, this study also scrutinizes Wang's New Interpretation of the Rites of Zhou and the Collection of Wang An-Shi's Articles. The findings demonstrate that Wang An-Shi's intention of interpreting the Classic of Poetry with law is to carry out the imperial government's policy of unifying the interpretations of the Classic of Poetry.