Abstract：The continuous cropping of watermelon〔Citrullus lanatus（Thunb.）Matsum.
et Nakai〕leads to the accumulation of allelochemicals，and causes the decrease of yield．It is of
important significance to reveal the obstacle mechanism of allelopathic on watermelon continuous
cropping，and overcome this obstacle．The paper reviewed the research progress on watermelon allelopathy，
including the current research status on watermelon allelopathy，the allelochemicals and their
releasing way，and the function characteristics of allelochemicals，and allelopathy application in production．
The paper also prospected the future research directions on watermelon allelopathy，aiming at
providing theoratical references for developing a scientific way to enhance watermelon resistance，and
improving the yield and quality of watermelon.
