The invention discloses a tangential-longitudinal axial type grain combine harvesting and bundling duplex operation 
machine which comprises a grain 
cutting and conveying 
system, a seed 
threshing and separating 
system, a seed cleaning device, a seed collecting and storing 
system, a 
straw compressing and bundling device, a 
chassis walking system and a driving operation system. When the duplex operation 
machine harvests grain in the field, firstly, the grain 
cutting and conveying system cuts stalks of grain and conveys the grain to the seed 
threshing and separating system, straws where seed 
threshing and separating are conducted are compressed and bundled through the 
straw compressing and bundling device, seeds obtained through threshing are cleaned through the seed cleaning device, and seeds obtained through cleaning are conveyed to a grain tank through the seed collecting and storing system. The duplex operation 
machine can meet the requirements for harvesting seeds of rice and wheat and compressing and bundling threshed straws, and has the advantages of being high in work efficiency, stable in 
work performance, simple in work procedure and capable of saving time and labor.