In the present paper, we investigated unsteady three-dimensional flow of an incompressible magneto Maxwell nanomaterial in the porous medium. The cause of flow is unsteady stretching of sheet in transverse lateral directions taking zero mass flux of nanoparticles. The developed system of partial differential equations is transformed into nonlinear ordinary differential equations by similarity variables, and the obtained system is solved for dimensionless temperature and nanoparticles concentration by homotopy analysis method. The behavior of physical parameters on the temperature and nanoparticles concentrations is examined through graphs and tabular data. The temperature distribution at the surface is also computed and analyzed and noticed that both the temperature and nanomaterial are reduced for higher values of unsteadiness parameter.