The invention discloses a polyester recycled material road used technical fiber production process, which includes the following steps: dosing, batch charging, vibratory screening, feeding, pre-drying, drying or tackifying drying, adding nucleator, screw extrusion, melt filtrating, spinning, tow cooling, rolling and oiling, reciprocating tank falling, bunching, drafting, tension-setting, passing through a crimping machine, and shrink-setting. The invention improves the prior polyester recycled material technical fiber production process, and can adopt the polyester recycled material to produce the eligible road used technical fiber with low cost, environmental protection, and saved resource; which accords with the present nation called circulating economic developing ideology. The product quality completely achieves the quality standard of the road used technical fiber at home and abroad.