Device for blocking reserve positioning hole of tunnel contact net slotted channel

The utility model relates to a device for blocking a reserve positioning hole of a tunnel contact net slotted channel. The device is provided with a blocking mounting plate, wherein two blocking and positioning mounting holes are arranged on the blocking mounting plate; a rectangular blocking block is fixed and installed on a plate face of the blocking mounting plate; and the two blocking and positioning mounting holes are arranged on the two sides of the blocking block. The device can effectively and reliably paste and block the reserve positioning hole of the tunnel contact net slotted channel which is provisionally not in use and arranged on a lining trolley template, so as to guarantee no grout leakage of concrete at the second-time lining, and avoid the second-time repairing of the concrete at the second-time lining.