This paper introduces material characteristics of the ZrO Fine Ceramic and merits of the ZrO\-2 Ceramic Gauge Blocks,then emphatically introduces testing results of main technological parameters of the Ceramic Gauge Blocks.The Ceramic Gauge Blocks have a good market with the features of high hardness,wear resistance,good toughness,corrosion resistance and resistance to oxidation,thermal expansion coefficient matching on steel gauge blocks,good wringing,size stability and easy maintenance.