The invention discloses a precise controllable heat supply radiator and mainly relates to the technical field of an industrial heat radiator. The precise controllable heat supply radiator comprises heat supply power supply pipes, heat supply water returning pipes and water charging and discharging pipes, wherein three sections of heat supply water feed pipes and three sections of heat supply water returning pipes are respectively arranged; the three sections of heat supply water feed pipes and the three sections of heat supply water returning pipes are both mutually connected by the water charging and discharging pipes; the body of each heat supply water feed pipe is sequentially provided with a locking and sealing regulator and a water filter; the body of each heat supply water returning pipe is provided with a locking and sealing valve; the body of each heat supply water feed pipe and the body of each heat supply water returning pipe are both provided with a flange, a flow sensor and a temperature sensor; the flow sensors and the temperature sensors are both connected with an integrator and an external controller; the bottom of each water charging and discharging pipe is provided with a sleeve. The radiator disclosed by the invention is capable of precisely controlling flow and water temperature; a worker can monitor transmission and loss conditions of heat in real time, so that unnecessary waste of energy is commendably prevented, and the overall running cost is lowered; besides, the radiator is durable in use and quite remarkable in heat radiation effect.