The effect of ceramics in the nutrient solution on the growth of Chinese flat cabbage(Brassica campestris L. var. Tacai) was studied at the favourable root temperature of 3$0^{circ}C$ and at the greenhouse air temperature of fixed $25^{circ}C$. Ceramic No. 2 was produced the greatest dry weight, while ceramic No. 3 was lower productive than those of untreatment in each root temperature. Shoot/root dry weight ratio was reduced at treatments with ceramics, which may be explained by rich root growth, and it increased as raising the temperature from 25 to 3$0^{circ}C$ or 35$^{circ}C$. The treatments of ceramics made lower water content/dry weight($mell$/g) ratio of Tacai than untreatment. The electrical conductivity and inorganic matters of ceramics were low level(EC 0.001 -0.03mS/cm). Also, the blue ceramic No. 3 of them had strong antibacteria in LB medium and ceramic treatments was inhibited the rot of solution.