Abstract: Web services have good interoperation and can efficiently support coordination and integration of software, the process of coordination and composition needs the support of web services transaction to ensure consistent and reliable outcomes. Based on the property, principle and runtime mechanism of web services transaction; a web services transaction process system was designed and implemented. This system comprises fours part in functions: client, coordinator, participant, monitor and manager tools. Client can create and commit or cancel web services transaction, coordinator is the center that manages and coordinates the transaction, participant is the web service enrolled in the transaction, and monitor and manager tool is GUI tool provided to the administrator. Two-phasecommit protocol was used in the interaction between coordinator and participant parts to ensure the outcome’s atomicity and consistency. This system has the advantages of flexibility and practicability in transaction processing, and can meet the needs of inter-enterprise business transaction.