The electro-magnetic distribution when the Gaussian beam is incident into the bicrystal structure is presented, and the refraction and transmission coefficients of extraordinary light at the bicrystal interface are derived. According to dispersion relations, The relations of the incident angle, reflection angle and refraction angle equations with bicrystal parameters and wave vector are obtained respectively. The variation of the reflection angle and refraction angle with the incident angle for certain bicrystal parameters is presented by angle quations. The unique properties of amphoteric refraction, negative refraction, total transmission and total reflection are plotted and analyzed, and the crystal parameters and incident angle for these properties are analyzed. The time-averaged energy density distribution of Gaussian beam with special parameters in bicrystal is numerically analyzed when amphoteric refraction, total transmission and total reflection occur. At last the Goos-Hnchen shift of incident angle at the interface is given with different beam widths when total reflection occurs.