The first conjugated borinic acid polymer (PTPEBA) featured with tetraphenylethylene unit and boron in the main chain was synthesized by polycondensation reaction of the Grignard reagent of 1,2-bis(4-bromophenyl)-1,2-diphenylethene and trimethyl borate. It was characterized by ¹H-NMR and FT-IR. Gel permeation chromatography (GPC) result indicates that the number average molecular weight of PTPEBA is 5200. The aggregation-induced emission(AIE) of PTPEBA in THF/H₂O mixture was investigated by fluorescence emission spectra and fluorescence quantum yield. The results demonstrate that PTPEBA exhibits obvious AIE feature when the volume fraction of water is higher than 80% and the fluorescence intensity in water is 477 times greater than that in THF. Fluorescence emission spectra were used to study the doping between PTPEBA and tiny amount (1%) of readily available ACQ fluorescent dyes (acid red 87 and fluorescein). The results show that AIE PTPEBA causes the luminescence enhancement of fluorescent dyes (acid red 87 and fluorescein) in solid state, which is a promising method for enhancing the luminescence of commercial ACQ fluorescent dyes in solid state.