张学良主政东北时期 ,遵循历史进步的法则 ,积极推行政治体制改革 ,扭转了政治方向 ,使东北从半封建的军政合一的政治形态向民族民主化政治形态转化 ,政权性质发生了质变。以三民主义政治思想为指导的东北新政权 ,是一个爱国反帝的政治集团 ,一个为民族解放而极力维护祖国和平统一的新政权 ,一个带领东北人民进行现代化建设的政治领导核心。东北政体的变革推动了那一时期东北现代化建设的向前发展 In his rule of the Northeast China, Zhang Xueliang actively followed the principle of historical progress, actively pushed forward the reform of the political system, reversed the political direction, transformed the semi-feudal political and political union into a democratized national political form, and qualitatively changed the nature of the regime. The new regime of northeast China, guided by the Three Principles of the People’s Principles, is a political group that patriots and anti-imperialists, a new regime that strives to safeguard the peaceful unification of the motherland for national liberation, and a political leadership core that leads the people of northeast China in their modernization drive. The transformation of the Northeast polity promoted the development of Northeast China’s modernization in that period