The invention discloses a crawler-type pipeline robot, comprising a vehicle body, a walking mechanism, a cleaning mechanism and an electronic control system. The walking mechanism comprises two crawler-type walking wheels, two crawler-type pressing wheels and two wheel grooves, wherein the crawler-type walking wheels are arranged on two sides below the vehicle body, the crawler-type pressing wheels are arranged within the wheel grooves, the two wheel grooves are separately connected to the two sides of the upper portion of the vehicle body through telescopic rods, and each telescopic rod is sleeved with a spring. The crawler-type pipeline robot can perform long-distance walk within a pipeline stably, and carry out pipeline exploration and cleaning work effectively.