Objective To study the bonding efficiency of zirconia ceramics with 3 kinds of resin-reinforced glass ionomer. Methods Blocks of sintered zirconia ceramics were cut and randomly divided into 3 groups with 20 slices each. They were treated with sandblasting and bonded with 3 kinds of resin-reinforced glass ionomer respectively. After preserved in distilled-water for 24 hours and aged by thermocycling 5 000 times, the shear bond strength of these specimens was tested and data were analyzed by SPSS 11.5 system for windows. The bonding face was observed by scanning electron microscope. Results The shear bond strength of the ceramic and 3 kinds of resin-reinforced glass ionomer was （15.1±3.2）, （16.1±4.0）, （18.6±3.4）MPa（after preserved in distilled-water for 24 hours） respectively, and decreased greatly to （5.1±2.1）, （7.5±2.9）, （8.7±2.6）MPa（after thermocycling 5 000 times）. There was obvious statistical difference before and after thermocycling（P
