The invention provides a test method of a bank self-service device system and a server. The test method comprises the following steps of: receiving a device selecting instruction input by a user; obtaining device type recognition information of a selected self-service device according to the device selecting instruction; obtaining a transaction message data structure and history message data of the selected self-service device according to device type recognition information; receiving test message data which is input by the user and is the same with the data items of the history message data; assembling the test message data and the message data structure into a test message; sending the test message to a bank background server to carry out a simulative transaction test of the selected self-service device; and generating a test result according to the test information of the simulative transaction test of the selected self-service device, wherein the test information is fed back by the bank background server. The embodiment can use an automatic test tool to simulate the self-service device to test data and can increase test speed and test stability.