The work aims to introduce a new concept airdrop equipment, namely the rotary-blade delivery system and its packaging design. The principle of the delivery system was analyzed based on rotary-wing aerodynamics; and the packaging design of key components was researched. Aerodynamic force on rotary wing was a key factor to slow down the airdrop system. The angle of attack of converged air flow was big inside and small outside. Relative air flow in different sections made different function divisions on the whole rotary wing. The experimental results confirmed the feasibility of this kind of the delivery system. In conclusion, low cost and fast packaging make the rotary-blade delivery system worth promoting. However, it is very important to pay attention to packaging design.