The invention discloses a power consumption information acquisition method, a power consumption information acquisition system and an intelligent power distribution box. The power consumption information acquisition system comprises a power consumption information server and a plurality of intelligent power distribution boxes which are respectively arranged in user families; each intelligent power distribution box comprises a power supply device and a power consumption information acquisition device, the power consumption information acquisition device comprises a processing unit, an Ethernet interface circuit which is electrically connected with the processing unit and a plurality of power information acquisition units which are connected with the processing unit through a data bus and respectively matched with a power supply circuit in which each air subswitch is arranged in the power supply device; the power consumption information server is used for transmitting an acquisition instruction periodically to each intelligent power distribution box; after the power information acquisition units collect the power information of the power supply circuit which is matched with power information acquisition units, the processing unit returns the power information to the power consumption information server through the Ethernet interface circuit after receiving the acquisition instruction. According to the technical scheme, the power consumption information of the power supply circuit in which the air subswitch is arranged can be acquired by the user from the power consumption information server.