A series of novel compounds 3-(2-furyl)-4-aryl-1, 2, 4-triazole-5-thiones have been synthesized. All the compounds were characterized by spectral data and elemental analysis. The preliminary biological test showed that some of them exhibited excellent plant-growth regulative activities. All the compounds were characterized by spectral data and elemental analysis. The preliminary biological test showed that that the novel series of novel compounds 3- (2-furyl) -4-aryl-1,2,4-triazole-5-thiones have been synthesized. some of them show excellent plant-growth regulative activities.