Based on bionics principle and geometric reconstruction method,bionic grooves of bird wing profile were designed on the hybrid gas bearings to improve their bearing capacity and stiffness.Using the variational method to solve the Reynolds equation and the FLUENT software,the static characteristics of the hybrid gas bearing with bionic groove of bird wing profile were simulated and analyzed.The effects of journal speed,air supply pressure,eccentricity,groove depth and groove deflection angle on the static characteristics of the bearing were studied.The results show that when the eccentricity is the same,the bearing capacity and stiffness of bearings increase with the increase of journal speed,and decrease with the increase of air supply pressure.When the film thickness is constant,the bearing capacity and stiffness of bearings increase first and then decrease with the increase of groove depth,and first increase and then decrease with the increase of the groove deflection angle.