Poly(aryleneethynylene)s containing BODIPY(4,4-difluoro-4-bora-3a,4a-diaza-s-indacene)(P1) were prepared by palladium-catalyzed Sonogashira polymerization of 2,6-diiodo-functionalized BODIPY monomer(M1) with 1,4-diethynyl-2,5-didodecyl-oxybenzene monomer(M2).The structures of the monomer(M1) and copolymer(P1) were confirmed by 1H-NMR and Fourier transform infrared(FTIR) spectroscopies; their optical properties were characterized by UV-Vis absorption,photoluminescence(PL) spectroscopy and the Z-scan technique.Both UV-Vis absorption and fluorescence emission of copolymer P1 red-shifted to longer wavelengths(λabs:from 502 nm to 542 nm; λem:from 511 nm to 631 nm) relative to those of the monomer M1 due to the π-conjugation extension of the copolymer.The third-order nonlinear optical coefficient(X(3)) of copolymer P1 was 1.94 × 10-10 esu,which is almost two or three orders of magnitude greater than that of common conjugated polymers without BODPIY moiety. Poly (arylenethynylene) s containing BODIPY (4,4-difluoro-4-bora-3a, 4a-diaza-s- indacene) (P1) were prepared by palladium-catalyzed Sonogashira polymerization of 2,6-diiodo-functionalized BODIPY monomer M1) with 1,4-diethynyl-2,5-didodecyl-oxybenzene monomer (M2) .The structures of the monomer (M1) and copolymer (P1) were confirmed by1H-NMR and Fourier transform infrared (FTIR) spectroscopies; optical properties were characterized by UV-Vis absorption, photoluminescence (PL) spectroscopy and the Z-scan technique. UV-Vis absorption and fluorescence emission of copolymer P1 red-shifted to longer wavelengths (λabs: from 502 nm to 542 nm; λem : from 511 nm to 631 nm) relative to those of the monomer M1 due to the π-conjugation extension of the copolymer. third-order nonlinear optical coefficient (X (3)) of copolymer P1 was 1.94 × 10 -10 esu, which is almost two or three orders of magnitude greater than that of common conjugated polymers without BODPIY moiety.