A new type of high-birefringence photonic crystal fiber is brought forward, and the method introducing circinal holes with different sizes or elliptical holes which is used to design high-birefringence photonic crystal fiber is replaced by introducing fluorine-doped solid circles. Then the characteristics of fundmental mode field distribution, mode cutoff, and the effect of all structure parameters on the birefringence are analyzed and discussed in detail by full-vector plane wave method. It is concluded that this type of photonic crystal fiber can offer birefringence higher than 10-3 in a rather broad wavelength range, and moreover, the peak of birefringence can be moved to the demanded wavelength by adjusting the hole spacing. Otherwise, it also has some advantages in the aspects of fiber drawing technique, fiber strength and fiber splicing.