Generally choose special moisturizing oil for guzheng maintenance, because guzheng is made of wood and has extremely strict requirements on the environment. Guzheng should be maintained in time in dry areas in the north. At this time, moisturizing oil will be used to ensure the humidity of the guzheng panel, and a humidifier can also be used.

The main material of guzheng is wood, which is easily affected by the change of air humidity. For example, in southern areas such as Hainan, wet areas need guzheng to use dehumidifier and other means to change the timbre caused by moisture. Similarly, the northern region also needs moisturizing, and tools such as humidifier or moisturizing oil are needed to maintain the humidity of the guzheng panel, otherwise the panel will crack. In addition to daily moisturizing, guzheng also needs to be wrapped in a special box or cloth to prevent sun exposure, rain and swelling. The wood of guzheng absorbs water very easily, so it is not suitable for playing guzheng in rainy days. It is best to block the sound holes on the panel to prevent the excessive humidity from affecting pronunciation.