With the merging of quantum information and home network technologies, the adoption of quantum key to ensure the security of home network communication has become a critical topic. To address the problem of digital home network security with increased complexity and variety, this paper proposes a secure communication protocol in integrated quantum information technology in heterogeneous digital home network where GHZ states are shared by intelligent terminal equipments, family gateways and servers within business management platform. Based on the inherent triplet-state characteristics of quantum GHZ states, legitimacy of communications between servers within business management platform and intelligent terminal equipments can be validated, and information can also be protected. This protocol can be implemented by existing approaches.