［Objective］In order to achieve the efficient matching of photoinitiators with UV-Vis LED light sources.［Methods］ A novel UV-Vis light-responsive one-component free radical photoinitiator，（hydroxy（4-（10-phenylanthracen-9-yl）phenyl）methyl）diphenylphosphine oxide（DPOH），was designed and synthesized by introducing 9，10-diphenylanthracene into the structure of hydroxylphosphine oxide，and it was found that its precursor compound，4-（10-phenylanthracen-9-yl） benzaldehyde（DPO），also exhibited excellent photoinitiation properties. The absorption and photolysisbehaviors of DPOH and DPO were investigated by UV-Vis spectrophotometer，and the photoinitiationmechanisms of the synthesized photoinitiators were speculated by electron paramagnetic resonance andmass spectrometry analysis，the thermal stability was evaluated by thermogravimetric analysis and differential scanning calorimetry，and real-time infrared spectroscopy was conducted to investigate thephotopolymerization kinetics of photoinitiators.［Results］DPOH and DPO exhibited significant light absorption capabilities in the near-ultraviolet to visible（UV-Vis）region. The double bond conversionof trimethylolpropane triacrylate initiated by DPOH and DPO could reach 49%~68%，and that of ethoxylated trimethylolpropane triacrylate could reach 87% and 95%，respectively. The thermal decomposition temperatures of DPOH and DPO were 253 ℃ and 330 ℃，respectively. When mixed with trimethylolpropane triacrylate，their thermal polymerization onset temperatures were 176 ℃ and 187 ℃， demonstrating outstanding thermal stability.［Conclusion］DPOH and DPO are highly efficient and stable cleavable LED photoinitiators，demonstrating significant potential for applications in photocurable materials.