The type HQY-500 drilling rig adopts division structure of executable section and control section of power, which could be used in all kinds of construction areas, such as tunnels, mountains, highlands and so on. This drilling rig is developed based on the requirement analysis of mountainous drilling of international operation. It is much lighter in weight and easier to move at mountainous working site. It is suitable for the drilling on mudstone and sandstone terrain. Each part of the rig is no more than 200kgs and maximum single module weight have been reduced dramatically and can moved easily, while keeping the same drilling capacity with original drill rig.