The temperature distribution characteristics of the patients with somatization symptoms were obtained by infrared thermal imaging technology, which can provide clinical indicators for identifying somatization symptoms. By using the self-rating scale of somatization symptoms, 162 patients with somatization symptoms were screened. These patients were taken as an observation group and 145 patients with non-somatization symptoms were taken as a control group. All patients were examined by the standardized infrared thermography. Five frames of images were captured from each person, and the characteristics and abnormal images were identified and compared between the two groups. The results of the images of the patients in the observation group were as follows: 3 patients were normal, 107 patients (66.%) were mild abnormal, 42 patients (26%) were moderate abnormal and 10 patients (6.2%) were severe abnormal. In the control group, 127 cases (87.6%) were normal, 18 cases (12.4%) were mild abnormal. 0 case (0%) was moderate abnormal, and 0 case (0%) was severe abnormal. The total abnormal rate of infrared thermal image temperature distribution in the observation group was 98%. The abnormal temperature distribution images of the patients could be used as an index to identify somatization symptoms.