Based on the fishery production sampling data obtained from the coast of Jiangsu Province in 2014, the production and spatial distribution characteristics of different horsepower gillnet fishing vessels were analyzed. The results show that different horsepower fishing boats differ in terms of production time; the main production time of the majority of vessels is after the closure of the summer fishing period. The rate of fishing of small horsepower vessels is high not only after the closure of the fishing period, but also in the months towards the end of the year. The overall fishing production has obvious seasonal characteristics:at the beginning of the year, from January to March, the number of fishing vessels was the least; after the Ching Ming Festival and before the closure of the fishing period, from April to May, there was a small peak in the number of boats setting out for fishing; after the closure of the fishing period, the number of fishing boats was the greatest. The spatial distribution characteristics varied among different horsepower fishing vessels. The small horsepower vessels are fewer in the outer waters, and production is more likely in the waters further west and north, in terms of increasing horsepower. The distribution of fishing vessels in different months is different:the production waters occurred towards the northern area and close to inshore waters from January to March; the production waters tended to be offshore and in northern waters in April and May, same in latitude range of the pre-period; the production of the boats tended to be inshore and in northern waters in August and September; the production waters tended to occur in the southern and offshore waters from October to December. Additionally, there was a positive correlation between the size of the vessel and the catches per unit of effort (CPUE), and the relationship is estimated as CPUE=5.3428e^{(0.0062xPower)}; this can provide an important reference for the evaluation of the fishing intensity of Jiangsu gillnet fishing vessels. Finally, based on the research results, the corresponding management suggestions are proposed according to spatial and temporal characterization of gillnet production.