The invention discloses a precious metal switch contact element prepared through a plating resistance process, a plating application process and an etching process. A plating resisting process is achieved by plating resisting ink which does not need an exposure machine in printing. The plating application process is achieved through electroplating or chemical plating of precious metal. The etching process is achieved by using etching liquid containing weak organic acid, weak inorganic acid or acid buffering agents; through sulfur-containing compounds, the brightness of etching is improved, measuring etching is avoided, and dust resistance and oil stain resistance of contacts are improved by improving etching depths. The prepared switch contact has the advantages of being good in electrical conductance reliability, excellent in dust resistance and oil stain resistance, short in contact shaking time, long in service life and low in raw material cost.