Ling Bo villa for the Liaoning province Chaoyang City use of liquefied petroleum gas cell. With the Chaoyang City pipeline natural gas promotion process, liquefied gas pipeline, the district will complete its mission worktransporting liquefied gas. Ling Bo villa property company plans to use the gas pipeline transportation of natural gas as the gas source of the area, to ensure the safety of the gas replacement, plan for gas pipeline of the cell throughexcavation verification, the field measurements and the formula derivation method of safety assessment, and provide a theoretical basis and practical suggestions for the gas replacement work will be carried out the. The worksafety situation investigation Ling Bo villa residential gas pipeline assessment will also to liquefied petroleum gas pipeline replacement the Liaoxi area to work for natural gas pipeline has reference value.Key words: gas safety assessment.