Abstract: In this study,the correspondence between froth state and flotation reagent dosage was investigated by quantitatively analyzing the froth state in the flotation operation process using online detection equipment such as froth image analyzer and level gauge.The relationship between froth state and reagent control was established.Based on the quantified froth characteristic variables,guidance on reagent dosages was provided,laying a foundation for intelligent control of flotation reagents in the future.Through extensive on-site observations and data analysis,the rationality of the theoretical research was verified,which is of significant importance for improving the efficiency and stability of the flotation operation process.