Based on the high resolution output of the numerical simulation of the 1992 Hurricane Andrew with a mesoscale model MM5 of PSU-NCAR, the paper represents the mesoscale characters of the Hurricane Andrew and the differences in thermodynamic and dynamic structures among the eye, eyewall and spiral rainbands. The axisymmetrical distribution of physical variables discloses the dynam- ic characters of the eyewall different from the eye and spiral rainbands, while the asymmetrical distribu- tion reveals that the weather of strong storm takes place in the northwest of the hurricane. At the same time, the asymmetrical distribution also shows a synoptic conceptual model, where there is different de- veloping mechanism between the strong slant ascending flow in the eyewall and the spiral rainbands.