Abstract: An automatic ship design system and method using a conversational artificial intelligence model are disclosed. According to an embodiment of the present invention, the automatic ship design system using a conversational artificial intelligence model includes a memory in which one or more instructions, ship design knowledge information, and the conversational artificial intelligence model are stored; a communication unit for communication with a user terminal; and a processor configured to communicate with the user terminal via the communication unit and execute the one or more instructions stored in the memory, wherein the processor is configured to perform a conversation with the user through the user terminal by using the conversational artificial intelligence model, receive ship design variables through the conversation, and derive ship design information in real time using the ship design knowledge information according to the received ship design variables.