Abstract: Abstract:A study was conducted to investigate the pollution status of volatile organic sulfur compounds (VOSCs) and the factors influencing their spatial distribution in the Puhe River. A method for simultaneous determination of 14 VOSCs in water samples was developed by using purge and trap (P&T) coupled with gas chromatography (GC)-flame photometric detector (FPD). The factors influencing distributions of the VOSCs, including dissolved oxygen (DO), ammonia nitrogen (NH₃-N), chemical oxygen demand (COD_Cr) and biological oxygen demand (BOD₅), were investigated by correlation analysis. The results indicated that each target compound could be identified from the samples in 27 investigated sites, and the total concentration of 14 VOSCs, ρ(∑VOSCs), ranged from 85.82 to 1766.04 ng/L. Dimethyl sulfide (DMS) was the most important contaminant, with mean concentration of 114.29 ng/L, detection rate of 96.30% and variation coefficient of 0.42. The results of correlation analysis revealed that the total concentration of ρ(∑VOSCs) was significantly related to ρ(DO) (Pearson correlation coefficient:-0.751). This was the greatest factor influencing ρ(∑VOSCs) spatial distribution, followed by ρ(NH₃-N) (Pearson correlation coefficient:0.441). Conversely, ρ(COD_Cr) and ρ(BOD₅) were not significantly related to the total concentration of ρ(∑VOSCs).