The invention discloses a treatment method for recycling hydrofluoric acid waste liquor. The treatment method comprises the following steps of: analyzing the content of silicon in hydrofluoric acid waste liquor; adding a compound of sodium, potassium or barium, which is more than the content of silicon by once, into the hydrofluoric acid waste liquor in a treatment slot, so that the fluorine and silicon is combined with sodium, potassium or barium in the hydrofluoric acid waste liquor for a reaction to generate fluosilicate solids of sodium fluosilicate, potassium fluosilicate or barium fluosilicate; extracting the upper layer of liquor after settling the fluosilicate solids, and conveying back to the original process for use after adding high-concentration hydrofluoric acid to achieve a hydrofluoric acid concentration value satisfying the use of the original use. The hydrofluoric acid waste liquor is only added with a little sodium, potassium or barium ions to prepare the hydrofluoric acid which can be recycled, so that less chemical drug is consumed, the wastewater emission is greatly lowered, the hydrofluoric acid usage amount of the original process is saved and the extra purchase cost is saved, and therefore, the treatment steps are simplified, the treatment cost is lowered and environment-friendly benefits are achieved.