The concentrations of 0,200,500,800 mg/L of gibberellic acid were used to treatment water spinach sprouts in order to study the growth and the influence of the economic output.The results showed that the different concentrations of gibberellic acid had different effect on the growth of water spinach sprouts,besides 500 mg/L gibberellic could obviously promote the growth of water spinach sprouts,and the treatment which used 500 mg/L gibberellic had the advantages of maximum economic yield and better uniformity.