Wireless network protocol is the top most discussed topics and used of quantum cryptography is adding value to the network performance. In our research paper we are going to make a novel approach to create a development of quantum cryptography for wireless key distribution in 802.11 networks. Due to its mobility with fast data sharing in houses, offices, and businesses they are convenient. Users now choose a wireless network over a LAN-based network connected with Ethernet cables due to advancements in contemporary wireless technology. Unfortunately, security problems are a major worry because they frequently aren’t. It is simple for someone else to obtain information sent through websites or mobile apps while someone is linked to a Wi-Fi network. Based on the theory of physics, cryptographic key can be exchanged by quantum cryptography between two remote sites without any conditional security. The origin of quantum cryptography explained in the Heisenberg uncertainty principle, which tells that the certain pairs of physical channels are related in a way that measuring one property restricts the third user from knowing the value of the other at the same time. In our current research paper, we are using quantum cryptography with AOMDV routing protocol and measure the network performance so using quantum cryptography we will have both secured and improved performance in wireless adhoc network.