Based on the catch data collected by Chinese Pacific saury fishing vessels and remote sensing data in North Pacific, this paper analyzed the distribution of fishing ground of Pacific saury and their relationship with SST by using Explorer 4.0 on a grid of 1°×1°scale.The result indicated that the distribution of fishing ground changed widely in month, and it mainly concentrated in the waters near 36°N-47°N, 145°E-163°E; The movement of barycenter of catch had a tendency from south to north firstly and then moved in the opposite direction on the latitude, while on the longitude it moved from east to west. SST in the fishing grounds ranged from 10 to 17 ℃ with an average of 10-13 ℃．Meanwhile, SST decreased firstly and then increased as time goes on. Krnska1 Wallis test showed that there were no significant differences in CPUE related to temperatures during investigative period.