The effect of heat generation, thermal radiation and suction/injection on an unsteady moving surface subjected to micropolar fluid are studied. The governing boundary layer equations are transformed to ordinary differential equations containing unsteadiness parameter, heat generation parameter, thermal radiation parameter, suction parameter, and prandtl number. These equations are solved numerically by using mathematica program. The velocity, angular velocity, and temperature profiles are plotted and discussed in details for various values of the different embedded flow parameters.