Setting method and device for water supply temperature of chilled water of hospital refrigerating host machine

The invention discloses a setting method and device for a water supply temperature of chilled water of a hospital refrigerating host machine. The method comprises the following steps of: acquiring outdoor air dew point temperature, indoor air dew point temperature, a fresh air unit condensed water detecting device signal and a combined type air cabinet condensed water detecting device signal; selecting the relative low one of the outdoor air dew point temperature and the indoor air dew point temperature as a temperature calculated value; obtaining an initial set value of the water supply temperature of the chilled water of the refrigerating host machine; regulating the initial set value to obtain a final set value of the water supply temperature of the chilled water of the refrigerating host machine; and setting the water supply temperature of the chilled water of the refrigerating host machine according to the final set value. The setting method has the beneficial effects that: a current working condition is