In the integrated air defense operation, the medium-long range surface-to-air missile should hit the target accurately under the co-operation of the early warning aircraft. Therefore based on the process of collaborative guidance handover, this paper proposes two methods for collaborative guidance handover. By establishing a full ballistic model with terminal attack angle constraints, the role of missile trajectory in the handover process is illustrated. Finally, the calculation methods of the handover time parameters are provided. The simulation results show that the handover can be successfully completed in the ballistic model, and the calculation methods of handover parameters prove to be effective and applicable.