The invention provides a method for sealing and/or unsealing a transportation device and a corresponding handset. The method comprises the following steps: identifying that whether a handset user is legal or not; downloading sealing and/or unsealing information from a station terminal according to the result of identification; and sealing and/or unsealing the transportation device according to the sealing and/or unsealing information, and receiving result information of sealing and/or unsealing from vehicular monitoring equipment of the transportation device. Operations of sealing and unsealing the box wagon and the like can be completed through cooperation of the vehicular monitoring equipment with the handset, thereby adding an 'electric lock' to the railway freight box wagon, and realizing automation and informatization of railway transportation management.