Abstract: The trace total sulfur in coke oven gas was determined by ultraviolet fluorescence spectroscopy.The influences of the conditions,such as sample introduction rate,injection volume,gas flow rate,combustion temperature,sampling methods and injection methods,were investigated.The detection limit of total sulfur was 15 μL·m-3.The determination results were in agreement with that obtained by GC and microcoulometry,with RSD (n=7) less than 10%.