As long as it is on the outside of the furniture, there are two general principles of conservation: the first is to avoid as far as possible to avoid the curing layer second is exposed to the weather, the destruction of the furniture surface. Separately look, iron furniture surface basically by electroplating or oxidation treatment, the material itself mechanical performance is relatively strong, and not easy to wear, so widely used. Need to pay attention to when choosing is anti rust treatment must be in place, and the protective effect of the surface oxide layer of iron furniture up very easy to wear, use should be avoided on the furniture surface bump. The surface of solid wood furniture can be treated by wax treatment or paint treatment and antiseptic treatment. At the same time, the strong acid and strong alkali are not used in the process of avoiding man-made damage, so as not to damage the paint film. As for the durability of the material is rattan is the worst, so we should make full use of the advantages of light, do not have the time to close up, or very short service life.