The invention relates to an intelligent movable heat storage and supply device with a steam heating function. A cold-water spraying tube and a cold-water connecting tube of a cold-water inlet tube group are communicated; one end of a cold-water inlet tube is disposed outside a phase-change heat storage box and is communicated with a cold-water inlet, and the other end of the cold-water inlet tube is disposed inside the phase-change heat storage box and is communicated with the cold-water connecting tube; phase-change heat storage tubes of a phase-change heat storage component are fixed on fixing tube plates in parallelly staggered arrangement, and phase-change heat storage materials are sealed in the phase-change heat storage tubes; a steam spraying tube and a steam connecting tube of a steam inlet tube group are communicated; one end of a steam inlet tube is disposed outside the phase-change heat storage box and is communicated with a steam inlet, and the other end of the steam inlet tube is disposed inside the phase-change heat storage box and is communicated with the steam connecting tube; one end of a small water outlet tube of a water outlet tube component is communicated with the phase-change heat storage box while the other end of the same is communicated with a water outlet connecting tube; one end of a main water outlet tube is communicated with the water outlet connecting tube while the other end of the same is communicated with a water outlet; one end of a hot-water temperature-adjusting bypass is communicated with the cold-water inlet tube while the other end of the same is communicated with the water outlet connecting tube. The intelligent movable heat storage and supply device is reasonable in design, reliable in performance and high in heat transmission effect.