In order to establish objective, scientific, effective performance assessment system and strengthen government’s supervision on health service in our country, this research retrieved literature on relevant official UK websites and databases to get the whole picture of NHS (National Health Service) performance assessment policy, documents and reports. Based on the introduction of NHS Performance Assessment Framework (1999), NHS Performance Assessment Framework: Implementation Guidance (2009) and NHS Performance Rating, it summarized and analyzed the experience and measures of NHS Performance Assessment, which enlightened us in the following aspects: a) We should pay more attention to the performance assessment of national healthcare system and spread out the relevant work in China; b) Performance assessment is closely linked with national health policy and its strategic focus; c) Performance assessment centers on quality; d) We should take performance assessment as a strategic tool to improve the healthcare system performance.