This dataset consists of electroencephalography (EEG) data from 6 participants aged between 23 and 28 years, with a mean age of 25 years. The dataset is the motor imagery EEG signals of six different rehabilitation training movements in the upper limbs. We recruited six participants aged between 23 and 28 years, with a mean age of 25 years. Three of the participants are male. Subjects sat in a comfortable chair, facing the computer monitor that displayed the trial-based paradigm and their right arm was naturally placed on the table to avoid muscle fatigue.