Time and energy saving synthesis method is crucial to the scale up applications of energy conversion and storage materials. In this report, we demonstrate a convenient and novel approach to fabricate the highly crystalline ZnMn2O4 nanoparticles as anode materials for Li rechargeable batteries. Pure phase ZnMn2O4 samples can be feasibly obtained under different calcination temperature from the precursor via combustion assisted coprecipitation method. Various techniques are used to characterize the structure and morphology of the products. Sample gained at 800°C exhibits the best electrochemical property for lithium ion batteries. A reversible specific capacity of 716mAhg−1 can be retained under a current density of 100mAg−1 after 90 circles. Even the current density elevated up to 1000mAg−1, the reversible capacity of the material still can be kept as high as 500mAhg−1 after 1200 cycles. The outstanding performance compared to the other samples benefits from its good crystallinity and uniform dispersion with appropriate particle size.