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NGC 602 is an outstanding young open cluster in the Small Magellanic Cloud.We have analyzed the new HI data taken with the Galactic Australian SquareKilometre Array Pathfinder survey project at an angular resolution of 30". Theresults show that there are three velocity components in the NGC 602 region. Wefound that two of them having ~20 km s$^{-1}$ velocity separation showcomplementary spatial distribution with a displacement of 147 pc. We present ascenario that the two clouds collided with each other and triggered theformation of NGC 602 and eleven O stars. The average time scale of thecollision is estimated to be ~8 Myr, while the collision may have continuedover a few Myr. The red shifted HI cloud extending ~500 pc flows possibly tothe Magellanic Bridge, which was driven by the close encounter with the LargeMagellanic Cloud 200 Myr ago (Fujimoto & Noguchi 1990; Muller & Bekki 2007).Along with the RMC136 and LHA 120-N 44 regions the present results lend supportfor that the galaxy interaction played a role in forming high-mass stars andclusters.

The formation of the open cluster NGC 602 in the Small Magellanic Cloud triggered by colliding HI flows