Automatic dissolving and dosing equipment is a device that integrates feeding device, dissolving and mixing device, dosing metering pump and electric control system into one device, which can formulate powdered chemicals into certain concentration of drug solution and automatically add the drug solution to the dosing point. It is suitable for the dissolution and dosing of pharmaceuticals in drinking water treatment, municipal sewage treatment, circulating water treatment, industrial and mining wastewater treatment and sludge dewatering treatment.