Abstract: Meso tetramethoxyphenyl porphyrin and its Cobalt(Ⅱ) Complexes were synthesized using p-methoxybenzaldehyde and pyrrole as raw materials,propionic acid as the solvent,and chloroacetic acid as catalyst.These compounds were characterized by UV-vis,IR,1H NMR spectra and elemental analysis.The structure and the structure of design was in line.The fluoresence spectra of these compounds were sdudied.The results showed that the relative fluorescence intensity was meso-tetramethoxyphenyl porphyrinmeso-tetramethoxyphenyl porphyrin cobalttetraphenylporphyrin.