The invention discloses a telescopic platform assembled on a roadway or tunnel boring equipment. The telescopic platform is fixedly arranged on one side or two sides of an excavation working arm and comprises a fixed platform fixed to a machine frame, and a stretching-out platform which is connected with the fixed platform and can expand and contract; the stretching-out platform comprises at leastone middle telescopic pipe, a front end telescopic pipe movably connected with the middle telescopic pipe, and a rear end telescopic pipe movably connected with the fixed platform; and one end of thefront end telescopic pipe is provided with a drill arm or anchor rod arm installation seat, and a hydraulic oil cylinder arranged on the interior or the outer side of the fixed platform is connectedwith the front end telescopic pipe through a piston push rod. The telescopic platform is compact in structure and not large in occupied space, the machine does not need to be moved often, the operation efficiency is improved, and moreover, convenient transport and transfer as well as safe operation are facilitated. The telescopic platform can be made into a modular structure and combined with a plurality of types of equipment and is wider in application range.