The invention discloses an ore dressing method of a spodumene quarry, which comprises the following steps: raw ore grinding, slime floating, spodumene fast roughing, spodumene fast selecting, spodumene slow roughing, spodumene slow selecting and other steps, and a spodumene concentrate is finally obtained. The spodumene quarry separated by adopting the ore dressing method has good separation index, and the grade and the recovery rate of the spodumene concentrate are high. The ore dressing method is a new spodumene flotation process with the advantages of economy, applicability, simplicity, cleanness, strong controllability and good separation effect and is suitable for popularization and application.