The pres ent in ves ti ga tion deals with ob tain the so lu tion nat u ral con vec tion bound - ary layer flow of a micropolar fluid with thermophoresis. The sim i lar ity method is used to ob tain so lu tion for the gov ern ing equa tion. Four dif fer ent cases of flows have been stud ied namely a ver ti cal iso ther mal sur face, ver ti cal sur face with uni - form heat flux, a plane plume and flow gen er ated from a hor i zon tal sur face. Nu mer - i cal com pu ta tions are car ried out for the non-di men sional phys i cal pa ram e ter. The re sults are an a lyzed for the ef fect of dif fer ent phys i cal pa ram e ters such as thermophoresis, Prandtl num ber, microrotation pa ram e ter, buoy ancy pa ram e ter and Shmidt num ber of the fluid.