The invention relates to the field of 
metal sheet 
punching and folding equipment, in particular to a 
metal sheet 
punching and folding composite forming 
machine. Stand columns, feeding structures, limiting structures, guiding structures, a 
cut-off structure, a control structure and a 
punching and folding structure are included. The 
cut-off structure is fixed to the ends, deviating from the stand columns, of the guiding structures. The punching and folding structure is fixed to the end, deviating from the guiding structures, of the 
cut-off structure. When the punching and folding structure conducts punching and folding on 
metal thin materials, the metal thin materials can be 
cut off, punching, folding and 
cutting-off integration can be achieved, independence of the 
cutting-off procedure is reduced, and the 
machining efficiency is improved. The ends, deviating from the feeding structures, of the stand columns are provided with the guiding structures. Through the arrangement of the guidingstructures, the metal thin materials can be guided and can accurately enter the 
machining area. Through the arrangement of the guiding structures, the metal thin materials can be automatically conveyed to the 
machining area, manual feeding is not needed, automatic feeding can be achieved, and the machining efficiency is improved.