To construct the networking multimedia teachingflat of building enviroment and equipment engineering speciality, basing on the requirement of reducing periods and improving quality of teaching in college, founding on the paper textbook, using multimedia, software engineering and internet technologies , develops the threedimensional textbook of Heating Engineering. Besides the hierarchical text content, a lot of dynamic emulational equipment system charts are designed here and it will make the teaching more lively. Video tutorial, online testing, resource library are also affiliated to this textbook. And it is very easy to carry out cyber and longdistance teaching.