The invention discloses an operating unit for a coffee machine. The operating unit for the coffee machine comprises a touch panel, a conducting film, a display screen, a diffusing film, a panel fixing member, a circuit board and a casing. One end surface of the panel fixing member is arranged on the casing, and the touch panel, the display screen and the circuit board are arranged on the other end surface of the panel fixing member; the touch panel and the circuit board are electrically connected through the diffuse film, the display screen and the circuit board are electrically connected through the circuit board, and the diffuse film is arranged between the touch panel and the circuit board. The operating unit for the coffee machine also comprises a first sealing element and a second sealing element, wherein the first sealing element is arranged between the touch panel and the housing, and the second sealing element is arranged at wires on the housing, which are used for leading out the circuit board. The operating unit for the coffee machine has the advantages of effectively guaranteeing the sealing performance of the operating unit, ensuring touch sensitivity and prolonging the service life.