This paper proposes a new generation of high security level protection of the park integrated energy quantum security communication architecture to improve the security level of the park integrated energy information encryption transmission. At the same time, this paper proposes a quantum key update frequency calculation method, a key replenishment strategy and an optimal distribution strategy that are adaptive to the comprehensive energy business attributes of the park, and optimizes the quantum key control process of a quantum virtual private network (VPN). Finally, this paper verifies that quantum secure communication technology can effectively improve the data security of comprehensive energy business through field deployment and functional performance testing.