An electric soldering iron water cooling heat dissipation frame is composed of a stepping motor, a water pump, a guide cylinder, a plug, a control module, an iron stand, a sensor, a diode and a guide pipe. The electric soldering iron water cooling heat dissipation frame is characterized in that a first pin of the control module is connected with a negative electrode of a fan, a positive electrode of the fan is connected with a fourth pin and an anode electrode of the diode in parallel, the power plug is led out from a cathode electrode of the diode and a fifth pin, a second pin is connected with the sensor, a sixth pin is connected with a positive electrode of the stepping motor, and a third pin is connected with a negative electrode of the stepping motor. When the temperature of the sensor exceeds 70 DEG C and the duration time is longer than 10 minutes every time, the control module controls the stepping motor to recede outwards by 1mm so that a soldering iron head can be cooled; when the temperature of the sensor is lower than 70 DEG C, the control module controls the stepping motor to reset to the minimum aperture position so that the temperature of soldering iron head can be preserved, and the temperature rise effect can be achieved conveniently in the process of using. The electric soldering iron water cooling heat dissipation frame has the advantages that the heat of the soldering iron head can be dissipated when electric soldering iron is in a dormant state, the service life of the electric soldering iron is prolonged, and energy is saved.