The innovation of public administration culture is of great practical significance for promoting the reform of public administration system, reducing the implementation cost of public administration policies and shaping the image of modern government, which requires that the innovation of public administration culture must realize the fundamental transformation of participatory service and regular administrative culture by establishing interest service and openness. Keywords: administrative culture; Public administration system; Innovation 1. The practical significance of the innovation of public administration culture * * * Public administration culture is the soul of public administration, the internal power to guide, standardize and restrain the motives and behaviors of administrative subjects or administrative objects, and the sum of administrative psychology, administrative thoughts and administrative ethics that people have in the process of engaging in public administration activities. Public administration culture must respond or improve with the changes of administrative environment and administrative system, that is, to realize the innovation of public administration culture. With the arrival of the new economic era and China's entry into WTO, the internal and external environment of China's public administration is developing and changing with globalization, knowledge and informationization, so it is of great practical significance to strengthen the cultural innovation of public administration. 1, the innovation of public administration culture is the psychological basis to promote the reform of administrative system. Douglas North believes that institution is a rule to adjust human behavior, and it is a series of rules, law-abiding procedures and ethical norms of behavior. With the advent of the new economic era, China, as a member of the WTO, the existence of competition forces administrative organizations to modify their institutional framework to improve their competitive position, that is, to carry out administrative system reform, that is, the process of substitution, transformation and transaction from one more efficient administrative system to another. However, North also believes that the belief system determines people's values and affects people's institutional choices. In order to make the institutional change successful, the belief system must change with the system. The reform of administrative system is inseparable from the innovation of administrative culture, which is the psychological basis to promote the reform of administrative system. Only when people clearly realize the disadvantages of the old administrative system and the superiority of the ideal administrative system, and change their administrative thoughts, values, feelings and attitudes in time, and innovate and reform their administrative culture, will people actively observe, choose, adopt and formulate new administrative systems and policies, so as to make the administrative system reform more scientific and effective and make it easier for people to understand and support it. Otherwise, if people's ideas and values are not innovated, they will not be able to promote the reform of the administrative system, or even "have policies at the top and countermeasures at the bottom", resist the reform and promotion of the administrative system, and increase the transaction cost of the administrative system reform. 2. The innovation of public administration culture is an effective means to reduce the cost of public policy implementation. The so-called * * * policy implementation cost refers to the sum of manpower, material resources, financial resources, time and other expenses consumed in the whole process of policy implementation, also known as "policy operation cost". It includes both direct actual consumption and indirect wealth loss, especially the resources consumed by the executive departments in the process of policy implementation, as well as the losses caused by the policy objects resisting and weakening the implementation efficiency and increasing policy input. Strengthening the innovation of administrative culture is conducive to reducing the cost of policy implementation. Policymakers and executors can change their ideas in time, emancipate their minds, seek truth from facts, keep pace with the times, clearly understand the social development trend and the social problems that need to be solved urgently at present, and scientifically formulate reasonable and effective public policies, which will help policy executors deepen their understanding of public policies, thus increasing the initiative, enthusiasm and effectiveness of policy implementation; It is conducive to reducing the cost of publicity, explanation and communication for policy implementation; It is beneficial for people to actively abandon the remnants of traditional feudalism such as official standard, dependency and conservatism, and enhance people-oriented and participation consciousness, thus mobilizing the participation and support of the broad masses of people in policy formulation and implementation, making people's thoughts keep up with the pace of the times, recognizing the actual situation, increasing their understanding and cooperation with policies and their implementation, and thus effectively reducing the implementation cost of policies. 3. The innovation of public administration culture is an important way to shape the image of modern government. The government image is people's intuitive evaluation and inner experience of the "public goods" provided by the government; As people's overall impression and self-identity of the objective existence of the government; As the people's trust and support for public administration. A good government image is an important resource for the government's macro-control, market monitoring, social management and public service, and an inexhaustible source to reduce the pressure of policy formulation and the resistance of policy implementation, and improve the motivation of policy evaluation and the efficiency of policy implementation. However, influenced by the traditional administrative culture and under the control of centralization and autocracy, people are regarded as people belonging to the government authorities, subject to the government's power and dominated by it, forming the idea of indifference to the government's public management and resignation, passively accepting the influence exerted by the government and having a strong obedience psychology. However, in today's information society, the government will change from power administration to service administration, and people's wishes and interests will become the starting point and destination of government administration.