Abstract In this paper, we study the unsteady MHD flow of a Nano Powell-Eyring fluid near stagnation point past a convectively heated stretching sheet in the existence of chemical reaction with thermal radiation. The physical model governed by a system of nonlinear PDEs is converted into a system of nonlinear ODEs through group theoretic analysis until being studied numerically through the R-K’s fourth order method together with shooting technique. The associated physical parameters are examined and discussed graphically on the velocity, temperature and concentration distribution.