Two fluorinated fluorescent dichroic liquid crystal dyes DC-1 and DC-2 were synthesized through the Sonogashira coupling reaction by the raw materials of 8-(4-iodophenyl) fluoroboropyrrol and the 4-acetylphenylcholesterol ester or 4-acetylphenylpentyl dicyclohexyl methanol ester. Their chemical structures were both identified by 1H NMR, 13C NMR and HRMS. After the spectrum test conducted on the dye DC-1 and DC-2, the maximum absorption and emission wavelengths of dye DC were 503 and 517 nm respectively, the dye DC emitted green fluorescence. Based on the Guest-Host (G-H) effect, dye DC was dissolved in the host liquid crystal E7 as the guest component, the absorption dichroic ratio of DC-2 in the host liquid crystal E7 was as high as 8.91, and the ordered parameter was 0.73 which can be used in the Guest-Host liquid crystal display (GH-LCD). The mesomorphic properties of dye DC were tested by differential scanning calorimeter (DSC) in a certain temperature range. The liquid crystal texture of dye DC was verified by polarizing microscope (POM).