Honeycomb phononic crystal has excellent features in reducing noise and vibration. For the crystal with nitrile rubber as the base and steel as the scatterer, a wider frequency band gap and better vibration reduction effect is realized by constructing different honeycomb phononic crystal model and changing the geometric parameters. The model is constructed based on the periodic boundary condition and Bloch theory using COMSOL software. The band structure are calculated and compared with the transport properties. Finally, the most superior honeycomb phononic crystal was found out and a new method to control the band gap was claimed.