Nowadays, renewable energy and EVs have been widely utilized in the distribution network. However, increasing the distribution network hosting capacity to accommodate higher loads and renewable energy is an essential problem. In this paper, a price strategy is proposed to coordinately regulate the generation, storage, and demands in the distribution network. The voltage states are monitored and transferred to the control center, and a price strategy is then calculated in the controller and transferred to the generator, storage and demands. The real time price signals are calculated and updated based on the monitored voltage. For the generator, the electricity price signals are decreased when voltages are increased to export less power. For the storage, the price signals are dynamically updated based on the voltages and charging/discharging states. For the microgrid demands, electricity price signals are decreased when the voltages are increased to import more power; in addition, EV charging price signals are adjusted to improve the transportation network congestion. Based on the electricity price signals, generator, storage and demands are coordinately regulated to export/import power to/from distribution network to maintain operation security; in addition, through the EV charging price strategy, transportation network congestions are improved. The simulation results reveal that the coordinated voltage-price strategy can increase the hosting capacity of the distribution network.