Objective　To analyze various clinical parting of mallet finger, put forward different views of parting, and practice corresponding treatment method with their curative effects analyzed.　Methods  Along with the treatment advances of the mallet finger, we put forward new clinical classification by modification on the past classification, and determines the corresponding treatment measures according to the different classfication. From February 2009 to December 2013, 52 cases with mallet finger deformity were treated. 20 cases received conservative treatment, 6 cases were successful and others need surgical correction. 52 cases were operated according to the new classificaion:36 cases were treated by mini Anchors;4 cases were treated by pullout steel wire with button;3 cases were treated with Single screw;6 cases were treated by direct suture;3 case was treated by fusion of joint.　Results　The patients were followed from 4 months to 30 months. The results were excellent in 28 patients, better in 21, good in 6, and fair in 3 according with Palel’s evaluation standards.　Conclusion　It can determine clinical classification and operation method of the mallet finger before operation according to the medical history and X-ray, clinical cases confirmed that new cliassification is practical and satisfactory.