This recommendation specifies the requirements, functional architecture, reference points, hierarchical software-defined networking (SDN) controller and overall operational procedures of SDN control in QKDN. The scope of this recommendation covers: - Requirements for SDN control in QKDN; - Functional architecture of SDN control in QKDN; - Reference points of SDN control in QKDN; - Hierarchical SDN controller in QKDN; - Overall operational procedures of SDN control in QKDN;