The invention provides a key with patterns. The key comprises a base material layer, two opposite surfaces of the base material layer are an appearance surface and a bottom surface respectively, the base material layer of the key is provided with at least one gap penetrating the thickness of the base material layer, and the gap forms the patterns, wherein the key also comprises an elastic body layer which is attached to the bottom surface of the base material layer, at least one of the patterns comprises a closed ring, and gaps for forming the closed ring are continuous. An isolated part isolated by the patterns with the closed ring on the key can be stably kept on the key without adding a connecting point according to the key with the patterns, and the sensitivity of the key is not influenced. The invention also provides a keyboard with the key, a manufacturing method for the keyboard and a mobile phone comprising the keyboard. The method of the invention is convenient to operate, can realize mechanized production, and reduces the cost.