The hydraulic compost turner is the professional machine for horse manure compost and other organic materials fermentation. It adopts advanced hydraulic operating system, pull rod power steering operation and crawler-type running mechanism. Such structure makes sure it offers strong power and easy operation for the compost turning of materials. This compost turner can efficiently mix and stir the organic materials and meanwhile it can crush the caking of the materials so as to provide a good place for the zymophyte’s development and make the organic materials obtain a better fermentation. So it is the indispensable compost system for the harmless treatment of the livestock manure compost and organic fertilizer production.