Beijing Zhongxin Jiayi Technology Co., Ltd.'s multifunctional (soil) sulfide acidification blowing instrument has been designed and tested for long-term fatigue of components, and can now meet the experimental requirements. This instrument focuses on the problems encountered by users in experiments, such as difficult recovery rate, small number of experiments, and mismatched accessories and national standard methods (methylene blue spectrophotometry). After communication with frontline provincial unit experimenters, the shortcomings of previous sulfide products that only focused on instruments and did not pay attention to experimental practicality have been solved.