The invention relates to the field of electrical appliance switches and particularly relates to an isolation switch and a moving contact thereof. The moving contact includes a first conductive portionand a second conductive portion, the first conductive portion and the second conductive portion are in fitting cooperation and conductive contact, a buffer structure is arranged between the first conductive portion and the second conductive portion, the second conductive portion pushes the first conductive portion to move during the closing of the buffer structure, the second conductive portion is further provided with a stopping structure in the stopping cooperation with the first conductive portion in the direction far away from the first conductive portion, and the second conductive portion drives the first conductive portion to move during the opening of the stopping structure. Because the buffer structure starts to compress after the first conductive portion of the moving contact isin conductive contact of the static contact, the closing speed of the isolation switch cannot be slowed down, the impact energy of the moving contact and the mating contact is absorbed through the buffer structure, the impact force between the moving contact and the mating contact is reduced, and the problem that the moving contact in the prior is short in service life due to the bad buffer effectof the buffer structure.