The invention provides a loading and unloading handling mechanical arm for a 
solar cell module, and the mechanical arm provided by the invention is used for realizing the functions of loading and unloading in a 
solar cell module producing process. The loading and unloading handling mechanical arm is characterized by consisting of a mechanical arm mechanism I, a horizontal motion unit II, two 
vertical motion units III, a 
pallet lift mechanism IV and a frame V, wherein the mechanical arm mechanism is of an aluminum 
alloy frame combined structure, and is provided with a plurality of groups of sucker modules so as to realize 
safe handling of 
solar cell modules in different specifications; and the horizontal motion unit and the 
vertical motion units adopt 
servo motors as drive, and drive the mechanical arm mechanism through a synchronous cog belt and a 
ball screw assembly respectively to realize accurate motion positioning in 
horizontal and vertical directions, and the motion units of two directions can independently or simultaneously move. A position 
servo control system is of a hierarchical control structure formed by a human-computer 
interaction layer, a 
motion control layer and a 
servo control layer. The handling mechanical arm has the advantages of large 
working space, high positioning accuracy, small motion 
inertia, reliable and smooth motion and suitability for handling large-sized fragile solar 
cell modules in different specifications.