A series of multifunctional binary hindered amine light stabilizers(HALSs) were synthesized from cyanuric chloride, 2,2,6,6-tertramethypiperidine-4-ol and 2-hydroxyphenylbenzotriazole derivatives nucleophilic substitution. The new light stabilizers were confirmed by 1H NMR, IR and ESI-HRMS. And properties of six compounds had been studied, such as UV-Vis absorption, thermal stability and light stability. The results show that they have strong absorption in about 360nm, The maximum molar absorption coefficient (ε×105/L•mol-1•cm-1) was 3.67, 4.06, 4.22, 3.99, 4.65, 5.31, respectively. The oxi-dation resistance and photostabilization efficiency of six compounds can considerably improve the oxi-dation resistance and polymer photostability. The temperature of the TGA tests spectra of compound are 210 ℃, 225 ℃, 224 ℃, 238 ℃, 181 ℃ and 185℃, resectively. The time of mass decomposition rate of the copolymers is longer than 100h.