Abstract: A door division channel for a vehicle is provided between a sliding glass and a fixed glass of the vehicle to support the respective glasses. The door division channel includes an inner panel and an outer panel which are connected to upper and lower ends of a glass frame to cover a gap between the sliding glass and the fixed glass at the indoor side and the outdoor side of the vehicle, respectively; an inner elongation part of the inner panel elongating to the outer panel through the gap; and an outer elongation part of the outer panel elongating to the inner panel through the gap to couple with the inner elongation part.