Portable absorb phlegm apparatus designed based on developing orientation of similar products at home and abroad is a new generation of oil free lubrication suction device, which is suitable for use by the patient who has difficulty in phlegm removal due to illness, coma and operation, as well as for aspirating such liquid as pus and blood during the clinical practice. It is the commonly applied medical device for use in the emergency room, operation room, and for nursing in sickroom and home health care.