［Objective］To improve the problem of reduced yellowing resistance of coatings causedby the introduction of tertiary amine hydrogen donors/Norrish type II photoinitiators.［Methods］A tertiary amine hydrogen donor with self-migratory capability was designed and synthesized. This donor， in combination with benzophenone and 2-hydroxy-2-methyl-1-phenyl-1-propanone，formed an initiation system，which was employed to prepare a series of UV-cured coatings. The migration ability， along with its effects on the polymerization rate，degree of cure，oxygen inhibition resistance and yellowing resistance of the coatings，was systematically investigated.［Results］A fluorine-containing tertiary amine hydrogen donor，capable of spontaneously migrating to the coating surface，was successfully synthesized. Compared with UV-cured coatings containing 0. 5% diethylamine，the coating with 0. 1% migratory tertiary amine hydrogen donor achieved a double bond conversion rate of50% at a depth of 70 μm and a 10% increase in final double bond conversion rate，significantly alleviating the oxygen inhibition. After 150 h of accelerated UV aging，the color difference of the coating decreased from 11. 43 to 7. 10. The reduction in the amount of tertiary amine hydrogen donoreffectively enhanced the yellowing resistance of the coating.［Conclusion］The migratory hydrogen donors，leveraging their inherent migration capabilities，could effectively suppress interfacial oxygeninhibition and concurrently enhance the yellowing resistance of coatings at low dosages.