Disclosed is a heater for an electronic thermostat, in which response is improved so that time taken in increasing a heating temperature up to a target temperature can be reduced, and an effect on improving fuel efficiency of a vehicle is maximized through effective temperature control of a coolant, and a method of manufacturing the same. Further, there is provided a heater for an electronic thermostat, which is structurally simple, is improved in workability and productivity for mass production when manufactured and assembled, reduces production costs, and enhances durability and reliability when applied to the thermostat for controlling a temperature of a coolant, and a method of manufacturing the same.