The self-propelled organic fertilizer compost turner is the main machine of the specialized complete equipment in the organic fertilizer production/plant. It adopts four-wheel drive design which only needs one person to drive and the operation is very easy. When the machine starts to work, it straddles the strip-type compost heap and the rotary cutter shafts under the rack stir and mix the material. The operation can be completed not only in the open area but also in the workshop and greenhouse. One of the machine’s technical breakthroughs is to integrate the crushing function at the later stage of the material fermentation. With the continuous dehydration of the material, the cutter shafts can effectively crush the caking formed during the fertilizer fermentation. Thus the production does not need to equip an additional crusher, the crushing efficiency is greatly improved and the cost is largely reduced. The self-propelled compost windrow turner solves the problem that the production capacity is limited by the crusher.