Abstract: Quantities of extraction is an important part of the construction project based on BIM, The
existing engineering calculation software(such as Glodon and Luban)can import the Revit model into
its platform to calculate quantities, but part of the model data may be lost and there are strict
requirements for transformation of the model and the name of the component, poor applicability.
Revit as one of the currently most widely used BIM software, engineering extraction currently has a
very high accuracy but the volume of the deduction rules and schedule feature does not meet our
《GB50500-2013_construction engineering bill pricing norms》requirements. In order to realize the
localization of extraction of quantities based on the Revit platform, this paper used the Revit platform
and Revit API, established a budget BIM model, the use of the secondary development of model
components reset volume deduction rules and accordance coding member with the relevant parties to
achieve a rapid and exact the extraction of the bill of quantities, proved the feasibility of the localization
of extraction of quantities based on the Revit platform, improved the work efficiency and precision of
the calculation of quantities, reduced material waste, reduced management costs and budget risks.

Key words: bill of quantities, reset volume deduction rules, item codes, inventory