The invention belongs to tool design technologies and relates to a die disassembly and assembly device and method for a composite material cabin-type part. When the composite material cabin-type part of an aircraft is manufactured and assembled, the composite material cabin-type part is divided into an upper half cabin body and a lower half cabin body to be subjected to composite material placement curing forming. The upper half cabin body, the lower half cabin body and components of the two half cabin bodies need to be overturned and then assembled and glued after split work, and reliable positioning and overturning die disassembly and assembly are required to be achieved. But no reliable overturning die disassembly and assembly methods and devices exist until now. The special overturning die disassembly and assembly device used for the composite material cabin-type part is developed, and convenient and effective working ways are provided for lot production and manufacturing of the composite material cabin-type part. According to the die disassembly and assembly device and method for the composite material cabin-type part, an overturning tool is simple in structure, convenient to operate, reliable in overturning, accurate in positioning and capable of meeting the requirement of overturning die disassembly and assembly of the cabin-type composite material part, and the manufacturing efficiency of the composite material cabin-type part can be better improved.