The title compound was prepared by reaction of N,N -dimethyldithiocarbamate sodium with 1-bromo-1-(4-meth~oxy~phenylcarbonyl)-2-( 1,2,4 -triazole-1-yl)ethane. Its crystal structure has been determined by X-ray diffraction analysis. The crystal belongs to triclinic with space group P1-,a=0.7339(2) nm,b=1.1032(2) nm,c=1.1203(2) nm,α=90.27(3)°,β=102.03(3)°,γ=104.91(3)°,Z=2,V=0.8556(3) nm 3,D_c=1.360 g/cm 3,μ=0.325 mm -1 ,F(000)=368,final R_1=0.0475. The planes of 4-methoxybenzyl group and triazole ring are nearly perpendicular to each other. The dihedral angle is 83.97°. There is an obvious π-π stacking interaction between the molecules in the crystal lattice. The results of biological test show that the title compound has fungicidal and plant growth regulating activities. The title compound was prepared by reaction of N, N-dimethyldithiocarbamate sodium with 1-bromo-1- (1,2,4 -triazole-1-yl) ethane. The crystal belongs to triclinic with space group P1-, a = 0.7339 (2) nm, b = 1.1032 (2) nm, c = 1.1203 (2) nm, α = 90.27 (3) °, β = 102.03 (3) °, γ = 104.91 (3) °, Z = 2, V = 0.8556 (3) nm 3, D_c = 1.360 g / cm 3, μ = 0.325 mm -1, F 000) = 368, final R_1 = 0.0475 The planes of 4-methoxybenzyl group and triazole ring are nearly perpendicular to each other. The dihedral angle is 83.97 °. There is an obvious π-π stacking interaction between the molecules in the crystal lattice The results of biological test show that the title compound has fungicidal and plant growth regulating activities.