The invention discloses a control room cabinet door shelf which comprises a first steel pipe and a second steel pipe. The first steel pipe is provided with left support strips used for supporting and connecting holes. The left support strips are obliquely welded at the two ends of the bottom of the first steel pipe. Each left support strip is provided with a bolt hole. The connecting holes are arranged in the top of the first steel pipe in an equidistant manner. The second steel pipe is provided with right support strips used for supporting and a shaft sleeve. The right support strips are obliquely welded at the two ends of the bottom of the second steel pipe. Each right support strip is provided with a through hole. The through holes are connected with the bolt holes through bolts. The shaft sleeve sleeves the second steel pipe. L-shaped support struts are welded onto the shaft sleeve in an equidistant manner. The front ends of the L-shaped support struts are inserted into the connecting holes. The control room cabinet door shelf is low in manufacturing cost, can be folded, makes a cabinet door easy to take and place, and is easy to carry. The control room cabinet door shelf is very suitable for a control room with a small working space.