Automatic mahjong machines generally do not have an effect on pacemakers, but there are mahjong machines on the market with strong magnetic fields that can have an effect on pacemakers. The quality and performance of pacemakers on the market have been greatly improved, and there have been great improvements in the limitation of various magnetic fields. Automatic mahjong machines have weaker magnetic fields, so they will not have too much effect on pacemakers. However, there are fewer automatic mahjong machines with stronger magnetic fields that can affect pacemakers. Patients with pacemakers should not be overly emotional, so regardless of whether or not the automatic mahjong machine can have an effect, should be less likely to play mahjong activities. After the installation of pacemakers need to go to the hospital for regular review of relevant programs, early detection of pacemaker abnormalities, early treatment, to reduce the impact on human health. Do not perform strenuous exercise for two months after pacemaker surgery. Pay more attention to the upper limbs of the activity range should not be too large, so as not to cause excessive tension on the pacemaker’s electrode wire, resulting in the pacemaker’s electrodes fall off. Any discomfort should seek medical treatment in time and standardize the treatment.