The invention discloses an UVA solidification control system having a concentrated and distributing framework, and a control method thereof; the UVA solidification control system comprises a centralized controller, a plurality of UVA LED light source modules, an AC / DC power supply module, a display module and a heat radiation device; each UVA LED light source module comprises an UVA light source,a DC / DC UVA power supply module, a UVA power supply and a temperature detection module; the centralized controller is respectively electrically connected with the display module, the heat radiation device, each UVA power supply, and the temperature detection module; each DC / DC UVA power supply module is respectively electrically connected with each UVA light source and each UVA power supply, and the temperature detection module. The advantages are that the system can prevent the multi-stranded conductor problems of a complete distributing framework, thus improving the system stability, preventing violent temperature impact, reducing UV LED light failure, and prolonging the UV LED service life.