Abstract: Due to the auxiliary measures in grounding being neglected, static fire hazards occur in recent years.Aiming at the issue, efficiency of grounding of anti-static fire hazard and reasons of static fire still occurred after grounding are analyzed.Results display that this type of fire hazard is mainly induced by spark discharge from potentials formed between transported liquid and pipe inner wall and pipe orifices.Necessary auxiliary measures for grounding of anti-static fire hazard are presented.