The invention discloses a
formaldehyde scavenger with pure natural
plant extract and a method for preparing the
formaldehyde scavenger, and belongs to the field of technologies for biologically extracting natural plants. The
formaldehyde scavenger comprises, by weight, 20%-40% of Ocotea spp. extract liquid, 10%-40% of
cinnamomum camphora leaf extract liquid, 10%-20% of herba houttuyniae extract liquid, 10%-20% of
semen myristicae extract liquid, 10%-20% of
platycladus orientalis extract liquid, 5%-20% of radix glycyrrhizae extract liquid and 5%-20% of folium eucalypti extract liquid. The weights of the Ocotea spp. extract liquid, the
cinnamomum camphora leaf extract liquid, the herba houttuyniae extract liquid, the
semen myristicae extract liquid, the
platycladus orientalis extract liquid, the radix glycyrrhizae extract liquid and the folium eucalypti extract liquid is 100%. Processes for preparing
plant extract liquid include utilizing water as an extracting agent; cooking plants, cooling the plants until the temperatures of the plants reach the normal temperature and carrying out filtering, closed
fermentation and
distillation. The formaldehyde scavenger and the method have the advantages that formaldehyde, harmful gas such as
benzene and dimethylbenzene and undesirable
odor can be efficiently decomposed by the formaldehyde scavenger prepared by the aid of the method, and the formaldehyde scavenger further has antibacterial, sterilization, deodorization and antistatic functions; the shortcomings of secondary
pollution due to existing formaldehyde scavengers prepared from chemical reagents and existing formaldehyde scavengers mainly with chemical reagents and certain added
plant extract liquid, poor formaldehyde
scavenging effects and short shelf lives can be overcome.