Falsework is a kind of scaffoldwork using load bearing. It has widely use in scaffoldwork and bridgework and steel construction. For assuring falsework safety on structure construction, it is very important to quickly and accurately calculate falsework. Load - carrying capacity of staging of should be calculate by special design, which is from common used single row or double rows falsework. The authors analyze all kinds of factor and failure mode related to carrying capacity and find the result of numerical list by ANSYS program and code when the parameter of staging is determinated. It has important gaidance role in erection of falsework pole.