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To classify the emotion induced by human language, this study used EEG signals from the brain to identify the emotional and non-emotional two-character Chinese words.The power spectrums in theta, alpha and beta frequency bands are extracted by short time Fourier transform (STFT).Principal component analysis (PCA) is employed for dimensionality reduction.The mean accuracy rate of LDA classifier is about 63% for 4 subjects.The result demonstrates the identifiability of emotion in Chinese words.