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The rare earth (Eu3+ and Tb3+) organic complex was doped into PVB matrix materials by solution blending physical method, and the fluorescent composite materials with different concentrations. The analysis indicates that the rare earth organic complexes are evenly distributed in the PVB organic matrix after heating and cooling treatment, and no chemical reaction occurs. The composite exhibits good thermal stability below 150°C; Emission spectrum of Eu complex /PVB films has shown an intense red emission at 615nm with an excitation at 400nm. From the Tb complex /PVB films a green emission at 542nm with an excitation at 254nm has been observed, which provides a new idea for developing fluorescent materials in many fields.

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