Catalytic converter abnormity diagnosis method and electronic equipment

The invention discloses a catalytic converter abnormity diagnosis method, electronic equipment and storage equipment. The method comprises the following steps that a deceleration fuel cut-off judgment identifier is monitored; and if it is detected that the deceleration fuel cut-off judgment identifier is true, waiting for fuel supply recovery of a vehicle is carried out, the oxygen storage amount of a catalytic converter after fuel supply recovery is calculated, and whether the catalytic converter has an abnormal fault or not is judged according to the oxygen storage amount. By means of the catalytic converter abnormity diagnosis method, abnormal condition fault detection is completely based on the natural driving state of the vehicle in daily use, and a specific idle speed working condition does not need to be selected, so that the influence of diagnosis on idle speed starting and stopping of the vehicle with the idle speed starting and stopping function is avoided, and the deterioration influence of the dia