Abstract: Pipeline is one of the main ways to transport fluids such as oil and gas.During operation, it is subject to damage from environment and human interference, resulting in corrosion, or leakage on pipe body.Rehabilitating the in-service pipeline is a cost-effective method to pipeline operators.This article introduces the advanced equipment and method for repairing in-service pipeline used in foreign countries, including coating removal system, pipe surface preparation system and pipe body reinforcement method.