In conclusion, we provide an ingenious idea to enhance the phosphorescence properties of doped materials: First, the nitrogen-containing heterocyclic compounds are used as the guests, then the third component/metal salts are added to the host-guest two-component doped system to form a three-component doped system. Metal ions affect the electronic properties of the guest by coordinating with the nitrogen atom of the guest, thereby ultimately improving the phosphorescence properties of the doped materials. Metal ions (Al 3+ , Cu +/2+ , Zn 2+ , Ga 3+ , Ag + , Cd 2+ , In 3+ ) can stereoscopically enhance the phosphorescence properties of doped materials, among them, Ag + and Cd + can greatly increase the emission intensity, Al 3+ , Ga 3+ , and In 3+ can prolong the emission wavelength, Cu 2+ , Ga 3+ , and In 3+ can extend the phosphorescence lifetime. This work reminds people not to ignore the container advantage of host matrix, that is, not only the emitter/guest can be doped into the host, but also other third or even fourth components can be doped into the host. Ultimately, interactions between multiple components can enhance and enrich the phosphorescence properties of doped materials.