The slip effect on MHD oscillatory flow of fluid in a porous channel with heat and mass transfer and chemical reaction has been studied. The temperature prescribed at plates is uniform and asymmetric. A closed form analytical method is employed to solve the momentum and energy equations. The skin frictions, the Nusselt numbers and Sherwood numbers are evaluated using perturbation technique. The effects of various dimensionless parameters on velocity and temperature profiles are considered and discussed in details through graphs and tables. It is found that, the velocity increases with decrease in and increase in . The velocity also increases with decrease in . It is also observed that the temperature decreases with increase in . Increase in Schmidt number , chemical parameter and frequency of oscillation increase the species concentration or the concentration boundary layer thickness of the flow field.