Humic acid(HA) is the major component of humic substances of soil and has many kinds of functional groups. With further development of basic and applied research

HA

as a biological active substance

has been introduced into superabsorbent. The as-prepared superabsorbent has the functions to improve soil

enhance fertilizer efficiency

simulate growth

enhance resistance and improve quality

as well as to improve water absorbency and salt-resistant properties while reducing significantly the preparation cost. This article reviews the research work of superabsorbent with HA in recent years

including the classification

HA release mechanism and application of the superabsorbent. Moreover

a few proposes are presented for the future development of the supe rabsorbent with HA.