Aiming at the complex technology, long development cycle and high cost of large satellites, under the background for satellite emergency launch and rapid networking, the way of reconstruction of missiles and installing a small satellite to achieve the small satellite's mobile launch into orbit is presented. On the basis of missile dynamics model, the maneuvering optimization model for missile carried satellite is established; a small satellite launch program is designed. The genetic algorithm is used to solve the missile launch model. Simulation results show that a small satellite's mobile launch can be achieved by the modification of the missile.