Abstract: The balance between supply and demand is a fundamental law that any economic and social activity must follow, and platform governance is no exception. This article analyzes the internal logic of digital platforms improving government governance efficiency from the perspective of supply and demand relationship. Taking government public property warehouses as a case study, this paper explores how they can use digital platforms to improve the efficiency of administrative asset allocation. On the one hand, the digital platform of government public property warehouses utilizes an “open platform” to provide a sharing network that is not limited by time and space for government departments and market entities at different levels and dispersed in different regions under the condition of government sharing partial data. It introduces suppliers in the market to expand the supply side of assets, increases leasing business, and leverages the role of the market in asset allocation to achieve supply mode transformation and complete the structural adjustment of asset supply side, improve the adaptability of supply and demand. On the other hand, the asset allocation process is standardized, decomposed and streamlined through the data center, and some functions in the asset allocation process are “online” through the business center, making the asset management department “invisible”. Real time interaction mechanisms are established between the demand side and the supply side, achieving efficient linkage between supply and demand sides, reducing administrative costs, and ultimately improving asset allocation efficiency.