贴金，全称「贴金箔」，是将金箔贴在固体表面的装饰技术。不同于包金、鎏金或镀金。

黄金的延展性甚好，一克黄金可以拉成1800米的金丝，可制造成厚0.002毫米的金箔。传统的贴金法乃用生漆调以配油（熬炼过的熟桐油），在渗入少量银朱，制作为金地漆。把金地漆抹在器物表面，在快干的时候用竹夹复上金箔，以软毛笔在金箔衬纸纸背上轻刷，然后以丝绵球轻揉，金箔就会贴在器物表面上。再用清豆浆薄刷一遍，干了以后涂上一层金漆（生漆调以配油而成）来保护贴金层。

The term gilding covers a number of decorative techniques for applying fine gold leaf or powder to solid surfaces such as wood, stone, or metal to give a thin coating of gold. A gilded object is described as "gilt". Where metal is gilded, it was traditionally silver in the West, to make silver-gilt (or vermeil) objects, but gilt-bronze is commonly used in China, and also called ormolu if it is Western. Methods of gilding include hand application and glueing, chemical gilding, and electroplating, the last also called gold plating. Parcel-gilt (partial gilt) objects are only gilded over part of their surfaces. This may mean that all of the inside, and none of the outside, of a chalice or similar vessel is gilded, or that patterns or images are made up by using a combination of gilt and un-gilt areas.