[Objective] The large-scale decommissioning of wind and photovoltaic power equipment will pose a severe challenge to China's waste management system. By characterizing the spatiotemporal patterns and recycling potential of such waste, this study aims to systematically assess the comprehensiveness of existing waste management policies, identify critical blind spots, and propose targeted directions for optimizing China's green and circular utilization system. [Methods] Drawing on national and provincial-level policy documents, data of current installed capacities, provincial development targets, and target installed capacity under the carbon neutrality scenario, we employed a bottom-up Dynamic Material Flow Analysis (DMFA) to quantify the temporal trends, spatial distribution, and material recycling potential of China's wind and photovoltaic equipment waste from 2025 to 2050. Combining the quantitative results, policy analysis and field surveys were conducted to examine the misalignment between national/provincial policies and decommissioning pressures from temporal, spatial, and potential material recovery perspectives. [Results] (1) The findings reveal that approximately 28 million tons of waste is projected to be generated by 2050, containing around 13 million tons of recoverable materials. The decommissioning wave exhibits significant temporal urgency and spatial imbalance, with substantial disparities in disposal pressure across provinces. (2) Although existing policies provide a preliminary framework for lifecycle management and recycling responsibilities, they are largely disconnected from the projected exponential growth and regional disparities in decommissioning. Critical gaps include insufficient policy implementation in high-pressure regions, a lack of cross-regional coordination mechanisms, and the urgent need for refined market incentives and regulatory standards for recycled materials. [Conclusions] The current policy framework is insufficient to address the evolving spatiotemporal challenges of wind and photovoltaic power equipment waste. It is recommended that recycling networks adopt spatially differentiated layouts, tailored to provincial decommissioning scales and timelines. Additionally, market-based incentives should be enhanced for high-potential recyclable materials, alongside the establishment of a robust closed-loop traceability system and a fully enforced responsibility mechanism to achieve comprehensive regulatory synergy with decommissioning realities.