The invention discloses an alloy blade on saw tooth multi-angle gear grinding processing engine bed and a processing technology thereof. The alloy blade on saw blade multi-angle gear grinding processing technology comprises the following steps that (1), shafts of the processing engine bed of the alloy blade on saw tooth multi-angle gear grinding processing engine bed return to origin points; (2),the distance between a fixed end and a clamping end meets installation requirements of saw plate, and the clamping end is stopped to be adjusted; (3), the saw plate to be processed is installed on a rotary indexing device; (4), the clamping end is adjusted to clamp the saw plate to be processed between the fixed end and the clamping end; (5), processing program on the processing engine bed of thealloy blade on saw tooth multi-angle gear grinding processing engine bed is started, the rotary indexing device is adjusted, and the saw plate to be processed is rotated to a processing original location and fastened and locked; and (6), a first grinding head complete a gear grinding action of a last angle surface on a tooth profile of the left side gear teeth of the saw plate to be processed. Disposable clamping is used for completing all processing procedures, the work efficiency is improved, and the enterprise production cost is reduced.