Abstract:The control of pine diseased and dead trees is an important measure to isolate the infection source of Bursaph- elenchus xylophilus . since2019, she county Forest Bureau has introduced third party supervision companies to monitor the removal of dead and diseased pine trees . The practice of project supervision shows that it is very necessary to carry out the third-party supervision in the control of pine diseased and dead trees . The main contents and methods of the third party supervision are to strengthen“one tree , one file”in the project process management , strictly check the treatment of burn- ing pile , cutting pile , covering film or net cover , and covering soil depth , etc . At the same time , it is suggested that some specific areas may consider upgrading the third party supervision function to the role of inspection .