The invention belongs to the field of sputum suction devices, in particular to a special sputum suction device for clinical application in department of pediatrics, which aims at solving the problemsof larger size, inconvenience in carrying, lower flexibility in use and improper satisfaction of clinical requirements of department of pediatrics in most of existing sputum suction devices. The special sputum suction device adopts the scheme that the special sputum suction device comprises an installation fixing plate, wherein an installation box is fixedly arranged at the top part of the installation fixing plate; one side of the installation box is provided with an opening; an installation seat is fixedly arranged at the inner wall of the bottom part of the installation box; a vacuum pump is fixedly arranged at the top part of the installation seat; one end of an air suction pipe is fixedly arranged at one side of the vacuum pump; a vacuum box is fixedly arranged at one side of the installation box. The special sputum suction device has the advantages that the structure is simple, the size is small, the movement and carrying are convenient, and the flexibility in use is higher; thesucked sputum can be timely treated; by adjusting the height and angle of a display screen, the display screen can be conveniently observed by a child, the child is attracted by playing cartoons on the display screen, and the child can cooperate with the sputum suction.