The invention discloses an integrated standard 
engineering structure creation and 
system design method based on BIM (
Building Information Modeling). The method comprises the following steps: firstly, determining the location of main equipment, and drawing an equipment base and reserving the equipment spatial position; secondly, determining the type of integrated equipment, selecting usage families corresponding to 
system equipment, 
pipe fittings and pipelines and performing 
secondary development and design on each selected group, drawing into an integrated standard 
engineering structure, performing parameterized setting on the standard 
engineering structure, and configuring an in-out port; and arranging the standard engineering structure in the reserved position, and connecting the remaining pipelines and 
pipe fittings to complete the 
system drawing. The integrated standard engineering structure creation and system design method based on the BIM provided by the invention integrates the traditional family in the BIM drawing, and integrates the equipment with end pipelines and 
pipe fittings into the standard engineering structure; and in the BIM drawing, the addition of pipeline fittings is one of the main 
workload, and the 
integrated design method can improve the drawing efficiency, reduce the mechanical drawing time, and increase the 
layout flexibility and versatility.