Abstract: It is difficult to decelerate in a descent on the Mars because of the thin atmosphere there. This paper proposes an idea of supplying the spacecraft with extra magnetic resistance. Plasma would be generated in the fierce friction between the high-speed craft and the atmosphere, and the plasma would be captured by the magnetic dipole field added to the craft. As a result, there is a magnetic bubble generated, which moves along with the craft. The exchange of momentum between the neutral airflow and the plasma generates a drag, which helps slow down the craft. With the help of the magnetic resistance, the craft achieves a lower Mach number at the same altitude. The reliability of the parachute deployment will be enhanced under a low velocity. As a result, the magnetic resistance may provide a great help to the security of Entry, Descent, and Landing(EDL) on the Mars.