Four remote Sensing image forms appear in the Lop nur region: white colored background image, dark yellow-red mushroom-form image, ear-form image and winding belt-form image. The dark yellow-red mushroom-form image indicates old evaporites and the site of potassium deposit. Characterized by its shallow depth it can be prognosticated that there will be more than 100 million tons of potassium chloride in this region.