In this article, it is indicated how to use software to realize the automatic counting of the support material used in chemical piping and the output of the material tables, so as to raise the efficiency of the piping support design.

Different kinds of pipeline trestles were introduced,emphasizing the character of forcing and the form of breakage.

Based on the production line extension requirement in some composite material factory,the structure rebuilding and reinforcement design were carried out,the determination of adding story scheme and pipe support type was studied importantly,and the effect of construction on choosing of rebuilding and reinforcement scheme was discussed,so as to find safe,credible and simple construction scheme.