Abstract
Quantum cryptography is a new branch of physics and cryptography which exploit quantum mechanical phenomena to guarantee the secrecy of cryptographic keys. BB84 proposed the well known protocol that quantum key distribution could also be implemented using polarization photon between quantum systems. In this paper new model of implement BB84 protocol with Handover satellite constellation for possible to couple with quantum communications for more security and free space transmissions. So, the essential work carried in our research paper concerns a new idea development in satellites transmission whit implement of Quantum Key Distribution (QKD) algorithm based on photon encrypted code, including reducing the telecommunication interruption risks and this will provide indeed of a better free space communication quality.