Abstract: The present invention relates to a hair drier with a 3-Dimensional control interface, comprising a housing, a control button, a power supply, a heating element and a control circuit. An electrical connection is set among the power supply, the heating element and the control circuit. The control button has a 3-D control interface and can control each functional element of the hair drier separately or synchronously. This hair drier is single-key controlled and various functions of the hair drier can be realized by easily changing the angle of the button to a different direction, or moving the button towards different directions. This hair drier is simple in structure, easy to operate and convenient to use.