Aim: The spatiotemporal periodic pattern of a two-dimensional symmetrically
coupled map lattice is constructed. Method: Without solving the modeling e
quations, a series of spatiotemporal periodic orbits in coupled map lattice
s are deduced by known orbits of one-dimensional coupled map lattices with
lower spatial period. The stability of the deduced orbits is analyzed. Resu
lts: The L-2 x L-2 Jacobian matrices can be simplified as diagonal matrices
of a few 2 x 2 matrices. Conclusion: The stability of constructed orbits c
an never be better than that of the original ones.