Potassium humate is important in agricultural production ,due to Potassium humate is a high-efficiency organic potassium fertilizer, because humic acid is a biologically active preparation, which can increase soil available potassium content, reduce potassium loss and fixation, increase crop potassium absorption and utilization, and improve Soil, promote crop growth, improve crop resilience, improve crop quality, and protect agricultural ecosystems. With the deepening of the concept of balanced fertilization, the source of humic acid has been accepted by more and more people, and is expected to be high. This article will introduce the effect of potassium humate.