Abstract： Objective： To observe the clinical effect of Chinese medicine fumigation and hip bath combined with multifocal frequency spectrum instrument for pediatric crissum abscess. Methods ： A total of 102 pediatric perianal abscess were divided into 51 patients in the control group and 51 patients in the treatment group. The control group was treated with multi-source spectrum therapy instrument，while the treatment group was treated with Chinese medicine fumigation and hip bath on the basis of the control group，the two groups were treated for 2 weeks. The wound healing status and the Wexner score，wound discharge score， granulation growth growth score， concise health questionnaire (SF-36) score， Visual Analogue Scale (VAS) score and wound area before and after treatment， and the clinical efficacy and adverse reactions of the two groups were compared. Results： The total effective rate in the treatment group was 94.12%，higher than that in the control group by 84.31% (P＜0.05). In the treatment group，the healing time，the carrion drop time and the disappearance time shortened with the control group (P＜0.05)， the proportion of some incontinence and severe incontinence was lower than that of the control group (P＜ 0.05). The Wexner score，VAS score and wound area were lower (P＜0.05)，and wound discharge score， granulation growth score， SF-36 score increased (P＜0.05)； The Wexner score， VAS score and wound area were lower than the control group (P＜0.05)，and wound discharge score， granulation growth score， SF-36 score were higher than the control group (P＜0.05). The incidence of adverse reactions in the treatment group was lower than that of the control group (P＜0.05). Conclusion： Chinese medicine fumigation and hip bath combined with multifocal frequency spectrum instrument has a definite curative effect in treating pediatric crissum abscess， which can effectively improve the anal function of patients， relieve pain and accelerate wound healing，with high safety.