Recently, the Integrated Project Delivery(IPD) is based on collaboration and synthesis has been expected to improve the efficiency of construction industry. However, it is very difficult to apply, which the public construction projects in Korea due to misunderstanding of the IPD and rigidity of delivery system. Therefore, this study analyzed restriction factors of IPD to apply on Korea construction industry through survey and experts interview. As a result of analysis, three factors were developed, that is : policies, owners capability, and construction environment. Utilizing the results of analysis for three factors this study makes some suggestions for the application of IPD to Korea construction industry through SWOT analysis.