Visible light initiating system capable of initiating free radical/cation polymerization

The invention belongs to the technical field of visible light curing, and particularly relates to a visible light initiating system capable of initiating free radical/cation polymerization. The system comprises the following components in parts by weight: 0.5-1 part of an integral photosensitizer as a first component, 0.5-1 part of a coinitiator as a second component and 1-3 parts of a photosensitive synergist as a third component, wherein the formula of the integral photosensitizer is shown in the description; the coinitiator is one of fatty amine and aromatic amine derivative; the photosensitive synergist is one of iodonium salt, sulfonium salt and phosphonium salt. Compared with the common reported visible light initiating system, the visible light initiating system has the advantages that the light sensitive wave band is longer, the light absorption capability is stronger, the molecular structure is simple, the preparation is easy, the cost is low, and the visible light initiating system has good compatibility with hydrophobic light-cured resin, can effectively initiate free radical/cation photopolymerization, and has industrialized application potential.