Building stock plays a critical role in the sustainability agenda worldwide. It consumes a large proportion of energy and is one of the biggest carbon emitters. Hospital buildings are no exception. Therefore, the performance of hospital buildings is critical to achieve the overall carbon emission goal. Post occupancy evaluation has been a popular tool and technique to evaluate the building performance which provides feedback to the building design and construction. This paper investigates the post occupancy evaluation of hospital buildings. A typical hospital campus in China is selected for this research purpose. The results showed that, even though not being implemented widely in China, the POE is an effective and useful tool for building performance evaluation. In addition, the relative importance of POE study criteria is highlighted.