LNG ship-to-ship filling control system and method, terminal and medium

The invention provides an LNG ship-to-ship filling control system and method, a terminal and a medium, and the system comprises a control alarm module which monitors the operation state information in real time when a ship fills LNG to the ship, and carries out the analysis and judgment according to the operation state information so as to give an alarm; and the emergency cut-off module is connected with the control alarm module, monitors the safety state information in real time when the ship fills the LNG into the ship, and selects the corresponding cut-off operation according to the safety state information to stop filling the LNG into the ship. The system not only can meet the safety requirement required in the LNG ship-to-ship filling process of the modified LNG transport ship and actively and emergently cut off the filling process in emergency, but also can control the design of the system to avoid the situation that related operators operate on site in the filling process as much as possible; and the s