NOVELTY - A manganese oxide homologous nano-wire structure and spinel lithium manganate based lithium ion battery producing method involves mixing water and dilute hydrochloric acid by adding manganese source to obtain mixed solution, which is transferred to kettle, followed by placing a substrate in the kettle to obtain manganese dioxide nanowire. The nanowire is cleaned, dried and placed in an aqueous solution containing reducing agent and surfactant to obtain hydroxyl manganese oxide nano-wire, which is calcined to obtain manganese oxide nanowire array, which is mixed with solution of lithium source.    USE - Method for producing manganese oxide homologous nano-wire structure and spinel lithium manganate lithium ion battery.    ADVANTAGE - The method enables producing the lithium ion battery with high specific capacity and good circulation property.    DETAILED DESCRIPTION - A manganese oxide homologous nano-wire structure and spinel lithium manganate based lithium ion battery producing method involves mixing water and dilute hydrochloric acid by adding manganese source to obtain mixed solution. The mixed solution is transferred to a reaction kettle, followed by placing a substrate in the kettle at 160-190 degrees C for 20-28 hours to obtain manganese dioxide nanowire. The nanowire is cleaned, dried and placed in a aqueous solution containing reducing agent and surfactant at 180-220 degrees C for 3-5 hours to obtain hydroxyl manganese oxide nano-wire, which is calcined at 480-520 degrees C for 3-5 hours to obtain manganese oxide nanowire array. The obtained nanowire array is mixed with solution of lithium source and calcined in air at 480-520 degrees C for 3-5 hours, followed by utilizing titanium foil scraping material, and calcining at 720-760 degrees C for 8-12 hours in air to obtain lithium manganate spinel nanowire, assembling half-cell and lithium sheet at a current density of 100 mA g-1, cycle 3 turns coulombic efficiency of more than 95% to obtain detachable and proper spinel lithium manganate anode comprising lithium ion battery by utilizing plastic film as battery case, and heat-seal packaging machine. An INDEPENDENT CLAIM is also included for a manganese oxide homologous nano-wire structure and spinel lithium manganate lithium ion battery.