in the current article, natural gas hydrate dissociation experiments have been conducted on a self-designed apparatus, which consists of a high-pressure reaction vessel, visualization system, chiller with circulation system, gas supplier, and data acquisition system. Gas hydrate was synthesized in the reaction vessel, and then the dissociation experiment was performed by addition of ethylene glycol (EG) as an inhibitor. The results show that dissociation rate depends on the concentration and flow rate of EG because it reduced the dissociation heat, and less energy is required for dissociation at higher ethylene concentration. Thus, EG concentration and flow rate can be optimized in practical utilization.