Abstract: Abstract: May 18th, 2012 is the 10th anniversary of Academician Wang Zhizhuo’s death. As early as 1965, Academician Wang Zhizhuo had forecasted that the future artificial satellite would provide mapping personnel with images to compile and edit topographic maps in his article “The modern development of aerial javascript：void(0);photogrammetry ”.On January 9th, 2012, China launched its first civilian three-line-array stereo mapping satellite, ZY-3. This article has simply introduced the platform and load of ZY-3 as well as the preliminary results of ground process, image products and on-orbit testing, which is published to commemorate Academician Wang Zhizhuo.