A device for judging state of motion of a user is disposed on multiple carried articles carried by the user. The device includes multiple sensation modules disposed on the multiple carried articles. Each sensation module serves to generate motional state information. The device further includes a first processor. The first processor serves to receive and compare the respective motional state information. In case it is found that both the motional state information have instantaneously changed data, the first processor generates notice information. Accordingly, the device can more precisely judge the state of motion of the user to reduce waste of social resource and increase survival rate in case of an accident.
