The present invention relates to a control unit of a laundry treatment apparatus and, more particularly, to a control unit of a laundry treatment apparatus, in which shaking of a knob can be prevented and a feeling of manipulation of the knob can be improved when the knob is manipulated. The control unit of a laundry treatment apparatus includes a board provided in a control panel of the laundry treatment apparatus, an encoder mounted in the board and having a projected rotation shaft, a supporter mounted in the board or the control panel and having a hollow unit disposed outside the rotation shaft, a knob having a connecting shaft coupled to the rotation shaft, and a busing mounted in the hollow unit and rotatably supporting at least one of the connecting shaft and the rotation shaft.