The TPA Cobalt metal ion complex was synthesized latterly. Besides It is currently my interesting that the complex can be using to enhance the sensitivity of platinum electrodes. The complex is used to be instead of which the enzymes such as Tyrosinase to study the mechanisms of the catalysis of some of whiting active compounds with Tyrosinase like catalyst also is my target. Here we report that the complex which has been synthesized. And it was already determined with X-ray diffraction, Elemental Analysis, and cyclovoltammetry methods. Among the results, the X-ray data shows that the structure of the TPA Cobalt metal ion complex is packing in space group P21/c and it possess a good leaving group on Cobalt atom. It meant that when the whiting active compounds would be a chance binding on Cobalt atom. And besides According to the cyclovoltammetry data this complex is very easily to reduce due to it has low energy (it could be reduced at –510mv ) to be reduced with reducers such as the whiting active compounds. Even thought the reactions of whiting compounds with TPA Cobalt metal ion complex not performed yet. We are already proposing that it is must to reach any way. So we shell be test it in the future.