Two kinds of one-dimensional photonic crystals are repeated alternatively to construct the superlattice structure. The energy-band structures and transmission spectra of the superlattice are analyzed. Results show that multiple interface tunneling modes emerge and they couple each other to form a new pass band. As the periods of the one-dimensional photonic crystals vary, the width of the transmission band changes while the position of the band remains invariant. For specific periods of the photonic crystals, the pass band will split and a zero-phase or π-phase gap emerges.