According to the catch data of Sthenoteuthis oualaniensis in the northern Indian Ocean during 2017-2019 provided by the Squid Jigging Technology Group of the China Overseas Fisheries Association and the High Seas Seine and Trawl Technology Group, statistical analysis was made based on the above data with the effort, catch and CPUE for each of the three fishing methods of light lift net, light casting net and jigging. Through catch gravity analysis, cluster analysis and two-way analysis of variance, the spatial and temporal distribution of the three fishing methods and their differences in the years were studied and analyzed. The results showed that the annual catch of S. oualaniensis increased gradually, the yield for 2017, 2018 and 2019 were 28 347, 68 535 and 180 094 t, respectively. In terms of annual changes, CPUE fluctuates greatly; and from the monthly changes, the monthly output is consistent with the trend of CPUE changes. The yield center of gravity of each of the three fishing methods shows counterclockwise changes, moving from south to north and from east to west. Through clustering analysis, the lighting lift net can be divided into five categories, the light casting net can be divided into four categories, squid fishing is divided into six categories; main catch was focused in the area of 12.5°N-14.5°N,58°E-60°E and 16°N-18°N,61.5°E-63°E.Based on time and space as the factors, the analysis of the sea area between different longitude shows that CPUE is obviously different at different times and spaces, and there are significant differences in different fishing methods. The study holds that the future research should strengthen the sample collection work of time series, consider the change law and its root causes of environmental factors to analyze the squid fishery, and provide a basis for the subsequent rational development of the fishery and the establishment of relevant fishing forecast model.