IPv6 network node data security transmission method

The invention discloses an IPv6 network node data security transmission method. The IPv6 network node data security transmission method comprises the following steps of: a network node A sends an encrypted communication request packet to a network node B according to a routing path order; the network node B performs key sharing on key data K with the network node A through a key relay path consistent with the routing path; the network node A performs combinatorial computing on the key data K, the IP address of the network node A, and the IP address of the network node B to obtain a new key K; and the network node A encrypts the data to be sent by using the new key K. The IPv6 network node data security transmission method uses the BB84 protocol to perform quantum key distribution,and the key generated by a quantum key distribution terminal is transmitted to a router, which is more secure than a traditional cryptosystem; moreover, the new key K is calculated through a combined operation mode, therefore, the ke