The invention relates to a signal acquiring and controlling device and service configuration method thereof. The device and the method is suitable for the field of industrial control, wherein the method comprises the following steps of (1) acquiring hardware type data related to the accessed hardware type; (2) determining configuration information of the corresponding hardware type according to the hardware type data; and (3) determining a service processing unit which needs to be operated according to the service processing unit registration information in the configuration information of thehardware type, registering a service processing unit which is required to be operated, determining corresponding service pin configuration information in the configuration information according to the service processing unit which needs to be operated, driving the specified pin to complete acquisition and control of the signal. According to the device,the requirements of the services are collected through different types, configuration information of the service processing units of different collection object types is formed, and the corresponding service processing unit is dynamically registered, the flexible customization of the service processing capability is realized, the coupling degree of software and hardware is reduced, and the service adaptability of the signal acquisition and control device is improved.