The work aims to study the effects of graphene oxide content on the properties of graphene oxide/polyvinyl alcohol/polyacrylic acid composite hydrogels. Graphene oxide/polyvinyl alcohol/polyacrylic acid composite hydrogels were prepared by changing the content of graphene oxide (used as a physical crosslink agent). The structure, thermal stability, mechanical properties, equilibrium swelling ratio and elasticity recovery of composite hydrogels were analyzed. Oxygen-containing functional groups of graphene oxide were bounded with -OH of polyvinyl alcohol and -COOH of polyacrylic acid as hydrogen bond. The increase in relative content of graphene oxide could enhance the thermal stability and mechanical properties of composite hydrogels, and decrease the equilibrium swelling ratio. Within the range of test parameters, the graphene oxide/polyvinyl alcohol/polyacrylic acid composite hydrogels prepared have excellent thermal stability, mechanical property and elasticity recovery.