The invention relates to a method for quickly charging an 18650 lithium ion battery stacked battery pack. The method includes steps: (a) a heating stage, namely heating lithium ion batteries until the temperature is higher than 0 DEG C; (b) a pre-charging stage, namely performing intermittent charging and discharging on the lithium ion batteries until the voltage of the batteries is larger than or equal to a set voltage; (c) a quick charging phase, namely continuing charging the battery pack with the lithium ion batteries at the temperature smaller than or equal to 55 DEG C, and guaranteeing that the voltage of the lithium ion batteries is smaller than or equal to an end-of-charge voltage of the lithium ion batteries; (d) an absorption stage, namely stopping charging when the charging current of the lithium ion batteries is smaller than a rated current. The method has advantages that maintenance of molecular structures of electrodes is realized, and own layered structures or tunnel structures of the electrodes are guaranteed against deformation and collapse.