A method for manufacturing blade beds of a garden shear, wherein each of two blade beds has a length and a thickness far less than the length； the method includes: using extrusion method to extrude two blanks in directions parallel to directions of thickness of two blade beds respectively, wherein cross sections of the two blanks are shaped into the two blade beds； slicing the two blanks perpendicularly to the extruding direction into a plurality of pieces at intervals of distances equal to the thickness of the two blade beds respectively； and chamfering a plurality of peripheries of the pieces by punching.
