To separate the common kinds of plastics (HDPE, LDPE, PET, PP, PC, PPS, PE, PVC, ETC) by using Raman spectrum and laser-induced fluorescence spectrum (LIFS), the paper propose a method of combinating 1 064 nm laser Raman spectrum and 405 nm laser fluorescence spectrum at the same time to identify the plastic. The results showed that the dual-spectrum combination method classify plastics very well by comparing the correlation with the data in the spectrum library. The recognition accuracy is nearly 100%, which provides a novel way to identify the plastic for the effective recycling of plastic waste.