As a component of the new type of distribution system, the DC building distribution and utilization system (DCBDUS) has a great prospect for the development of the new infrastructure construction ecological chain for the “double carbon” objective. At present, the research on the low-voltage DCBDUS is still concentrating on system architecture design. While the study of operation control strategy is relatively less. For this field, a systematic summary of the low-voltage DC building structures with different application scenarios is indicated. In consideration of the “flat and distributed” networking characteristics, together with the demand for “weak centralized” control application requirement, the preferred operation control schemes both for buildings with AC to DC transformation and newly building DCBDUs are discussed to realize the flexible and stable operation of diversified DC equipment integration. Taking the demonstration project of low-carbon city-based future building-“Shenzhen IBR Future Complex” as an example, the daily operation control scheme and operation results are analyzed. Finally, the development route for the market-oriented applications of power electronic conversion controllers and countermeasures of the control strategies in DCBDUS are explored.