The invention belongs to the field of pharmacy, and particularly relates to an automatic efficient heat energy recovery system applied to the pharmaceutical industry, which comprises a primary recovery tank, a secondary recovery tank, a steam recovery tank, a hot water tank, a soft water tank, a cooling water tank, a cooling tower, a batching kettle, a water bath sterilization cabinet, a multi-effect machine, a first distributing head, a boiler and a second distributing head. Sterilization high-temperature water and flash steam are recycled, heat energy is recycled to the maximum extent, the water supply temperature of the boiler is greatly increased, and energy consumption of the boiler is reduced; full-automatic control is achieved, manual operation errors and tedious labor are avoided, data of all procedures of the hot water recycling system are recorded for 24 hours in the whole process, a basis is provided for management, the abnormal alarm function is achieved, risks caused by faults can be prevented, sterilization high-temperature water is recycled, meanwhile, power consumption of a cooling tower is reduced, repeated waste of energy consumption is avoided, and the whole system uses soft water, and fault maintenance and energy waste caused by scaling of equipment and pipelines are avoided.