A microelectronic controlled magnetic cleaning system, comprising: a micron-scale fine line inner-end part, a micron-scale fine line outer motor control part, and a micron-scale fine line outer system electronic control part. The micron-scale fine line inner-end part is specifically manufactured as a plurality of micron-scale magnetic fine lines, and the central magnetic fine lines are slightly wider than the peripheral magnetic fine lines. The inner-end part of the central magnetic fine lines is spiral shaped. The micron-scale fine line outer motor control part is made by adding a high-precision micro-motor at the middle portion outside the central magnetic fine lines. When a larger obstruction is found by an endoscope or other optical device imaging system, the central magnetic fine lines can be controlled to arrive at a designated position, and motor speed can be controlled to clean the obstruction. The micron-scale fine line outer system electronic control part specifically separates central magnetic fine lines from peripheral magnetic fine lines, connects respectively the central and the peripheral magnetic fine lines to an electromagnetic sensing system, ensuring that the control system can separately control advancement and retraction and magnetic properties of the central and peripheral magnetic fine lines, and combines a gyroscopic thermal tracking assistance system to locate the position of the fine lines and to display the same in a digital imaging system. Also disclosed is a micro-electronic controlled magnetic cleaning method.Système de nettoyage magnétique à commande microélectronique, comprenant : une partie d'extrémité interne de fines conduites de taille micrométrique, une partie de commande à moteur externe des fines conduites de taille micrométrique et une partie de commande électronique à système externe des fines conduites de taille micrométrique La partie d'extrémité interne des fines conduites de taille micrométrique est spécifiquement fabriqu