Government information sharing has been developing against a background of detailed division of government functions, reform of public administration and advancement of information technology on a global scope. In China, the construction of government information sharing dates back to the 1990s, when China started up the process of informationization. A decade later, remarkable progresses of government information sharing have been made especially in three aspects, i.e. scientific data, administrative regulation and administrative supply. It has significant implications for improving the scientific decision-making of government, advancing the quality of administrative regulation and promoting the efficiency of public service. Nevertheless, in practice, several problems regarding government information sharing, including low enthusiasm, insufficient validity and weak operability, have been showing up. Further development of government information sharing has been blocked due to those problems. The root cause of those problems is the imperfect of China's administrative system including absence of administrative authority, restraint of administrative organization and constraint of administrative procedure, which is not conformable to the development of government information sharing. In March 2011, the long anticipated ″China's 12th Five-Year Plan for National Economic and Social Development″ （″the Plan″）was approved by the National People's Congress. The Plan emphasizes the importance of E-government and intends to promote information sharing between different administrative agencies in important areas. For the time being, in order to fulfill the objectives of the Plan, the solutions to the problems mentioned above lie in reforming government function, administrative organization and operative mechanism, based on the construction of government ruled by law. Effective countermeasures have to be taken such as enacting a relevant administrative law to make clear the right and accountability, amending administrative organization law to remold government system and improving administrative procedure law to establish operational mechanisms.