Three-week old Commelina communis was transferred and grown in Hoagland solution containing $100{mu}M;Cd^{2+},;100{mu}M;Cd^{2+}+100{mu}M;kinetin,;100{mu}M;Cd^{2+}+100{mu}M;zeatin;and;100{mu}M;Cd^{2+},;200{mu}M$ zeatin for 7 days, and then a number of physiological activities were investigated. In control, the length of the stem of plants was increased to 4.7cm, but in $Cd^{2+},;Cd^{2+}+kinetin,; Cd^{2+}+100{mu}M;zeatin;and;Cd^{2+}+200{mu}M$ zeatin treatments, the growth of plants were increased to 1.5cm, 2.1cm, 3.9cm and 4.3 em, respectively. In the treatments of $Cd^{2+},;Cd^{2+}+kinetin,;Cd^{2+}+100{mu}M;zeatin;and; Cd^{2+}+200{mu}M$ zeatin, total chlorophyll contents were reduced to $26\%,;24\%,;15\%;and;3\%$, respectively, on the contrast to the control. In chlorophyll fluorescence experiments, Fv/Fm ratios were also reduced to $44\%,;21\%,;17\%;and;5\%$ in the light intensity of $2100{mu}Mmole;E;m^{-2}s^{-1};by;Cd^{2+},;Cd^{2+}+kinetin,;Cd^{2+}+$100{mu}M;zeatin;and;Cd^{2+}+200{mu}M$ zeatin treatments on the contrast to the control. Water stresses were increased to 2.6, 1.7 and 1.2 times by $Cd^{2+},; Cd^{2+}+kinetin;and;Cd^{2+}+{mu}M$ zeatin. On the other hand, combination of $Cd^{2+}+200{mu}M$ zeatin reduced water stress to $0.12\%$. In $Cd^{2+}$ accumulation experiments $Cd^{2+}$transports were inhibited to $33\%; 48\%;and;70\%;by;Cd^{2+}+kinetin,;Cd^{2+}+100{mu}M;zeatin;and;Cd^{2+}+200{mu}M$ zeatin. Therefore, it could be concluded that zeatin clearly reduced the toxicities of $Cd^{2+}$ by reducing the absorption of $Cd^{2+}$.