The invention discloses a porous carbon doped metal oxide and a lithium ion battery prepared with same. A preparation method of the porous carbon doped metal oxide includes the steps of: 1) preparing 3,3',5,5'-azobenzenetertaformic acid; 2) preparing a Cu-MOF material; 3) activating and calcining the Cu-MOF material. The lithium ion battery includes a positive plate, a negative plate, a diaphragm and an electrolyte. The negative plate includes the porous carbon doped metal oxide, electric conductive carbon black and a binder. The porous carbon doped metal oxide has a shuttle-shaped structure and can improve cycle stability and rate capability of the lithium ion battery when being applied as an lithium ion battery anode material. The lithium ion battery has high Coulombic efficiency, high charge/discharge specific capacity, excellent rate capability and excellent cycle stability, etc.