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There is a certain degree of danger on the deep submergence rescue vessel (DSRV) working, at any time it may need to convey emergency information. Submarine-launched unmanned aerial vehicle (UAV) device can be used for emergency information transmission of the DSRV. In view of the technical problems in the process of submarine-launched unmanned aerial vehicle, designing a method that can be applied to submarines and underwater. The First of all, according to the size of the UAV size of the special carrier size and shape design, due to ejection attitude and water surface was 72 degrees angle, in the cylinder wall design of the annular balloon; and then the special carrier shell linear. According to the linearity of the shell, the position of each device is adjusted to calculate the center of gravity and the center of the floating heart, and the calculation of the stability is calculated and the calculation is carried out by using the Fluent software to calculate the resistance. Finally, the design of the special carrier hardware control system is carried out. Using Matlab to design the special carrier heading-keeping simulation, which proves the stability of the designed special carrier. The special carrier to the unmanned aerial vehicles transported to the surface after the ejection launch, effectively solve the UAV waterproof and underwater ejection and other technical problems, reduce R D and ejection costs and improve safety.