The invention discloses an energy-saving environment-friendly air conditioning vessel which comprises a cabin body. A temperature sensor is fixedly connected to one side at the top of the inner wall of the cabin body. A refrigerator is fixedly connected to one side at the bottom of the inner wall of the cabin body. A control box is fixedly installed on the other side at the bottom of the inner wall of the cabin body. A central processing unit and a memorizer are fixedly connected into the control box. A control switch is fixedly connected with one side of the control box. A key is fixedly installed on the other side of the control box. The output end of the temperature sensor is connected with the input end of a temperature comparator. The output end of the temperature comparator is connected with the input end of a feedback module. The invention relates to the technical field of marine facilities. By the adoption of the energy-saving environment-friendly air conditioning vessel, automatic refrigeration control is conducted according to the temperature in a cabin, plenty of electric energy is saved, people use an air conditioner conveniently, and the energy-saving environment-friendly function is good.