Switching device with a device capable of reliably displaying switch position in contact welding

The invention relates to a switching device with a device capable of reliably displaying a switch position in contact welding. The switching device comprises an operation mechanism, which comprises anoperation element and is connected to a locking mechanism (11) through a first transmission mechanism, wherein the locking mechanism moves a driving slide block (15) through a second transmission mechanism; and a contact device. The contact device comprises a fixed contact carrier with a contact. The fixed contact carrier with a contact is opposite to a movable contact carrier with a contact. Themovable contact carrier is guided by a contact slide block. The switching device is characterized in that the device, which can reliably display a switch position in contact welding, is constructed in the second transmission mechanism in a form of bevel wheel segment (12), wherein the bevel wheel segment (12) and the driving slide block (15) are effectively connected through a locking device having two different structure