Locust is one kind of the insects to harm agricultural crops and forage grass. Until now, the major way to prevent and control the damages from locust is to carry out spray with insecticide. From 1970s' the satellite imagery such as Landsat/MSS, TM and NOAA/AVHRR have been applied in monitoring of the habitats for locust resting, growing and breeding as well as in the study of greenness of locust habitats in many regions in the world such as Northern Africa and Australia. As a result, the potential breeding sites for locust were inferred. Since 1990s' a combination of remote sensing and GIS techniques has been more and more accepted in the locust monitoring. The major progress in this research field and in recent years is presented in this paper.