Kangkung consumed by people as a source of vitamins and minerals. Kangkung darat (Ipomoea reptans) which grows into the thoroughfare be polluted the surrounding air, because Pb is polluted by smoke from vehicles passing through road, the presence of the nearby factories also released original results its production. Kangkung air (Ipo- moea aquatic) that grows in the river or watering place, therefore many are planted near streams and watered by the river water. If the river polluted with heavy metals, then most likely the plants that grow there, too polluted. This study aims to discover a method to reduce the content of heavy metals lead (Pb) in Kangkung darat (Ipomoea reptans) and kangkung air (Ipomoea aquatic). This study is a review journal. Of the 34 journals that review that examines the heavy metal pollution of lead (Pb) in kangkung, retrieved four journals that conduct research to reduce the content of heavy metals lead (Pb) in kangkung. Of the 34 articles in the review obtained that kangkung darat (Ipomoea rep- tans) and kangkung air (Ipomoea aquatic) water polluted by heavy metals lead (Pb). There are 4 articles that contains methods to reduce the content of Pb in kangkung is to boil the kangkung and harvesting will be consumed at the age of 3 weeks. To reduce the content of heavy metals lead (Pb) in kangkung can be made by boiling and harvest the sprouts at the age of 3 weeks. Further research done by doing modifications to reduce the content of heavy metals lead (Pb) in kangkung.