The embodiment of the invention discloses a method and a system for detecting the device type of a service system. The method comprises the steps of acquiring type information of a device, parsing the type information according to a preset rule so as to acquire a type parsing result of the device, comparing the type parsing result with a preset type when the type parsing result is not null, and enabling the type parsing result to act as the type of the device when the type parsing result is the same as the preset type. According to the invention, type information of each device is acquired, the type parsing result is compared with the preset type, it is indicated that the type of the device is correct if the type parsing result is the same as the preset type, the type of the device in the service system is set to be the type parsing result, so that a mode of manual device detection is replaced, detection for the device type is realized, and the efficiency of device detection is improved.