Abstract: During the reform of domestic petroleum industry, pipeline business departments of petroleum companies are reorganized and transformed into independent company to provide oil transportation service dominantly. In order to standardize and improve management of crude oil metering and transfer between the companies, the metering and transfer system of Chad-Cameroon Crude Oil Pipeline was taken as an example to analyze the volume-based metering and transfer mode between oil companies and pipeline companies under the international standard systems (e.g. API) from the aspects of metering equipment setup, metering and transfer process, data supervision & management, and malfunction and dispute treatment. It is shown that the metering and transfer mode of Chad-Cameroon Crude Oil Pipeline is characterized by high metering accuracy, high automation level, strong fairness, high investment utilization rate and high executive efficiency. The mode provides the reference for the metering and transfer of the existing crude oil pipelines.