This document specifies a unified test method for assessing the moisture and heat resistance of paint films on furniture surfaces. It applies to various types of finished furniture surfaces, simulating exposure to hot and humid environments to evaluate whether defects such as blistering, loss of gloss, discoloration, or cracking occur in the paint film. This method provides a basis for evaluating the durability and quality control of furniture coatings. The test requires the use of a constant temperature and humidity test chamber to precisely control temperature and humidity conditions, combined with a standard sample holder and observation light source to ensure stable test conditions and repeatable results. It is widely used for factory inspections, quality sampling, and product development verification of furniture, enhancing the service life and appearance stability of furniture in hot and humid environments.