Understanding software operation and using software to solve project practical problem is not always the same thing.A lot of detailed BIM software usage questions are often asked during BIM implementation.Due to the diuersity and multi-disciplines of BIM software, users are always facing questions like which would be the efficienct method or which technique could solve the issue well.And usually it' s hard to find answers directly from software online help or manuals.The questions and answers in this paper were all from the authors'project practice in the past 10 years.We would not say that these are the only or best way, but they are indeed feasible and reliable.