The invention provides a jewelry accessory fixing method. A jewelry comprises an annular body with an opening; the annular body is of a hollow tube shape; an elastic clamping device is arranged on the inner tube wall of the annular body; when the elastic clamping device is stressed and pressed downward, an accessory can pass through the elastic clamping device; when the elastic clamping device is reset, the accessory can be prevented from passing through the elastic clamping device. The method of fixing and clamping the accessory on the jewelry is easy to operate and convenient for replacing the jewelry accessory, and thus the decoration of the jewelry accessory is more flexible and practical. The invention also provides the accessory-replaceable jewelry.