The molecular structure contains carboxylic acid group with good scale inhibition and dispersion property and strong polarity sulfonic acid group, which has remarkable scale inhibition effect on calcium phosphate, calcium carbonate, zinc scale and so on in water, and has excellent dispersion property. Combined with organophosphorus, the synergistic effect is obvious. It is especially suitable for water quality with high pH, high alkalinity and high hardness, and is one of the most ideal scale inhibition and dispersant agents to achieve high concentration multiple operation. AA/AMPS is mainly used as an open industrial circulating cooling water system, oil field sewage reinjection system, metallurgical system circulating water treatment scale dispersion, iron and steel plant washing cooling water to prevent FE03 sludge deposition. AA/AMPS can be combined with organophosphate and zinc salt, suitable for PH conditions of 7.0 ~ 9.5.