The invention discloses an anti-cross infection atomization inhalation device for pediatrics, which comprises an atomizer working main body, wherein the outer surface of the upper end of the atomizerworking main body is provided with an isolation and separation protective edge; the outer surface of the upper end of the isolation and separation protective edge is provided with a medicine loading bin; the outer surface of the front end of the medicine loading bin is provided with a double-mode connecting pipe; the outer surface of the front end of the double-mode connecting pipe is provided with a respirator; the outer surface of one side of the respirator is provided with an exhalation filtering and exhaust device; the outer surface of the upper end of the medicine loading bin is providedwith a convenient heating device. According to the anti-cross infection atomization inhalation device for pediatrics, air exhaled by a child is absorbed, sterilized and exhausted through the exhalation filtering and exhaust device, so that cross infection is avoided; liquid medicine can be appropriately heated through the convenient heating device, so that the comfort level of inhalation of the atomized liquid medicine by the child is increased; the liquid medicine feeding posture can be selected according to actual conditions through the double-mode connecting pipe, so that people can use theliquid medicine conveniently.