A kind of highly birefringent Photont Crystal Fiber (PCF) was proposed, a central defect elliptical hole and two other elliptical holes just below and above the central one were introduced in the core region of PCF. The central defect elliptical air hole was filled with high refractive index of liquid such as carbon disulfide. The birefringence, power confinement factor, fundament mode field and dispersion characteristic of the fiber were studied by the full-vector finite element method. The results show that the liquid-core PCF has high power confinement factor, the high negative dispersion is realized in a wavelength range from 0.6 to 1.8 μm, and the birefringence up to 6.8×10－2 at 1.55 μm.The proposed PCF has achieved both the high birefrigence and broadband high negative dispersion characteristics, and showes good polarization stability by analyzing stucutural parameter fluctuation.