Abstract: Objective To select the effective microwave power for different severities of cervical erosion. Methods Two months after mild,moderate and severe cervical erosions were treated with different microwave powers（50W,51W,52W,≥53W）,the healing of cervical erosion was detected and the therapeutic effect of microwave power was evaluated. Results Moderate,mild and severe cervical erosions were healed after treated with 52W and 53W,50W and 51W,and ≥53W of microwave power,respectively. Conclusion Satisfactory therapeutic effect can be achieved in different severities of cervical erosion using the accurate and effective microwave power.