It is a kind of new-typed, high efficient, side-traction pickup bundling machine, which can automatically pick up the straws spreading on the fields, through the procedures of conveying feeding, compressing and knot tying, tie them up into square straw bales with orderly and regular shapes and higher density. 
It is applied to the pick-up and bundling of various crop straws, native pastures, planting pastures and fields, and also suitable for the fixed bundling by feeding of manual or other ways.