A dense network of sensors called the Wireless Sensor Network (WSN) based on ambient circumstances processes, and transmits data to a sink node. Within the entertainment and healthcare sectors, one of the primary areas of development is Wireless Body Sensor Network (WBSN) technology. Because of their limited size, limited cost, limited power consumption, low maintenance requirements, and ease of installation, WBSNs are a desirable option for these kinds of situations. WBSNs offer many advantages, but they also present a number of difficulties character wise, due to their restricted resources viz., finite power supplies, mobility in the network, which include computational power, storage capacity and communication capabilities. Wide range of medical monitoring equipments are available in hospitals but they are not location dependent and mostly difficult to handle due to wired nature of the network. A hybrid Improved Unequal Secure Cluster based Distributed Routing Protocol with Quantum key Distribution (IUSCDRP-QKD) for WSN to correct energy effectiveness while simultaneously boosting reliability and security. A direct and confidential communication between the source and destination is shown, where communication is accomplished by exchanging a single photon rather than establishing an initial secret key exchange. Quantum cryptography is a quantum mechanics-based mechanism for safeguarding the distribution of symmetric encryption keys. The proposed system key management scheme applying QKD provides security against all the attacks as it uses the quantum key and hence impostors will not be able to predict or catch the secret key, thus providing a robust and unbreakable security to the network. The goal of this work's future directions is to raise the protocol's efficiency percentage to the maximum.