The invention provides a pressing structure of an automobile front windscreen rack. The pressing structure is suitable for placement of glass sheets of different sizes, can prevent tilting and sliding, is great in firmness and has higher using value. A frame in the shape of a dustpan is provided with rotating shafts inside; the two end portions of each rotating shaft are provided with protrusions; a front bottom rod and a rear bottom rod of the frame are slide rail structures; the inner portions of the two ends of the front bottom rod and the rear bottom rod are provided with pin holes; the rotating shafts are inserted in the pin holes of the front bottom rod and the rear bottom rod correspondingly via protrusions and are thus fixed to the frame; bent pressing rods are fixed to the two ends of each rotating shaft and a locating shaft is connected between the top ends of the pressing rods on the two ends; the locating shafts are sleeved with rubber sleeves; fixing plates are arranged between the pressing rods and under the locating shafts; the outer sides of the fixing plates are provided with insertion pins near insertion grooves of locating plates; the front bottom rod and a rear top rod are provided with binding band handles.