A system of intravenous fluid temperature control is a combination of apparatuses that provides a two-stage temperature control of intravenous (IV) fluid. The combination of apparatuses includes an IV fluid retention unit, a microcontroller, at least one heating mechanism, a temperature sensor, and a portable power source. The IV fluid retention unit contains the IV fluid which is delivered into a patient. The at least one heating mechanism and the temperature sensor is in thermal communication with the IV fluid retention unit. The microcontroller is electronically connected to the at least one heating mechanism and the temperature sensor. The microcontroller, the at least one heating mechanism, the temperature sensor, and the portable power source is externally mounted on the IV fluid retention unit. The portable power source is electrically connected to the microcontroller, the at least one heating mechanism, and the temperature sensor.
