A numerical investigation has been carried out to determine the heat transfer occurring in the boundary layer on a two-dimensional stretching surface in a rotating micropolar fluid subject to suction and blowing considering the sheet with prescribed wall temperature. The fluid viscosity and thermal conductivity are assumed to vary with temperature. The micropolar model due to Eringen is used to describe the working fluid. The partial differential equations governing the motion, angular momentum and energy are reduced to ordinary differential equations using similarity transformations and then solved numerically using Runge-Kutta shooting technique. The results are presented graphically for velocity distribution, temperature distribution and micropolar distributions for various values of non-dimensional parameters. It is found that the effects of the parameters representing variable property of viscosity and thermal conductivity are significant.