The inspection of tongue form，as a part of tongue diagnosis，is of great clinical importance.The objective study of tongue form helps to accurately reproduce and record the form of the tongue，providing data for revealing the dynamic changes of the tongue form and the evolution of the disease.Moreover，it provides timely，intuitive，and accurate feedback on the efficacy of treatment，on the basis of which the efficiency of traditional Chinese medicine(TCM) treatment can be enhanced.Therefore，the inspection of tongue form provides a standardized and objective basis for TCM treatment.This paper summarizes the segmentation methods of tongue images，the extraction and analysis techniques of tongue form features，the clinical significance of common tongue form feature parameters，and the application of tongue form feature objectification in TCM clinical diagnosis and treatment，with a view to providing references for the objectification of tongue inspection in TCM.