Abstract: In the light of an uneven heating problem existed in joint coating with blowtorch heating of heat shrinkable sleeve, heating tool for heat shrinkable sleeve’s joint coating of pipeline, which takes LPG catalytic combustion as a kernel technology, is developed. Field experiment verifies that technical indexes of the tool meet the needs of relative codes and requirements, with characteristics of even heating, energy saving, time saving and easy operation, which increases the quality and effectiveness of pipeline joint coating. The tool is provided with stronger industrial applicability and favorable popularization and application.