An entertainment device and method for a self-driving vehicle enable a passenger to play a game while watching a game execution screen of a display mounted around a seat in a state where the passenger is seated on the seat of a self-driving vehicle, and execute and proceed with the game based on a signal that senses a body pressure distribution of the passenger in a body pressure sensor mounted on the seat, and a signal that senses the touch pressure of the passenger in a touch pad mounted on the seat, thereby allowing the passenger to enjoy various games related to the body pressure and/or the touch signal while the passenger moves his or her body.