The invention discloses a treatment method for removing total phosphorus from glyphosate weedicide wastewater, which comprises the following process steps of: performing an alkaline hydrolysis and precipitation reaction, performing a Fenton oxidizing reaction, performing catalytic oxidation and precipitation on calcium hypochlorite and the like. The glyphosate wastewater treated by the method hasan excellent dephosphorization effect, the total phosphorus content in effluent reaches the three-level standard (TP is less than or equal to 0.5 mg/L) of the national sewage discharge standard (GB 8978-1996). The dephosphorization process is safe, advanced, clean and low in wastewater treatment cost.