A method of milling electrodes (24, 26) of spot-welding devices, especially for milling electrode caps of the electrodes (24, 26), comprising the steps of: 1. introducing a fresh electrode (24, 26) into the spot-welding device; 2. providing a milling device with a milling tool and contacting the electrodes (24, 26) and the milling device; 3. performing initial milling with s revolutions of the milling tool in relation to the electrode (24, 26), wherein s is a predetermined number of revolutions required for milling a fresh electrode (24, 26) identical in construction to the shape required of the final ready-to-operate electrode (24, 26) by way of the milling device; 4. performing a first control, wherein the electrodes (24, 26) of the spot-welding device are brought into direct contact with each other, and an electric property of the contact point will be determined, for example the contact current flowing across the contact point, characterized in that the method furthermore comprises the following steps: 5. performing practical spot-welding processes; 6. performing a first follow-up milling procedure with f revolutions, wherein f is the number of revolutions, with which a preceding electrode (24, 26) identical in construction has been treated by way of the milling device, generally with a follow-up milling procedure; 7. Performing a second control, such as in step 4, and depending on the measuring result, a.) if the measuring result is not more than 10% worse than the measuring result of the first control, performing further spot-welding processes such as in step 5, b.) if the measuring result is not within the limits of the step 7 a), performing a post-milling process. 1. introducing a fresh electrode (24, 26) into the spot-welding device; 2. providing a milling device with a milling tool and contacting the electrodes (24, 26) and the milling device; 3. performing initial milling with s revolutions of the milling tool in relation to the electrode (24, 26), wherein s is a predetermined number of revolutions required for milling a fresh electrode (24, 26) identical in construction to the shape required of the final ready-to-operate electrode (24, 26) by way of the milling device; 4. performing a first control, wherein the electrodes (24, 26) of the spot-welding device are brought into direct contact with each other, and an electric property of the contact point will be determined, for example the contact current flowing across the contact point, characterized in that the method furthermore comprises the following steps: 5. performing practical spot-welding processes; 6. performing a first follow-up milling procedure with f revolutions, wherein f is the number of revolutions, with which a preceding electrode (24, 26) identical in construction has been treated by way of the milling device, generally with a follow-up milling procedure; 7. Performing a second control, such as in step 4, and depending on the measuring result, a.) if the measuring result is not more than 10% worse than the measuring result of the first control, performing further spot-welding processes such as in step 5, b.) if the measuring result is not within the limits of the step 7 a), performing a post-milling process. a.) if the measuring result is not more than 10% worse than the measuring result of the first control, performing further spot-welding processes such as in step 5, b.) if the measuring result is not within the limits of the step 7 a), performing a post-milling process.