The invention relates to the technical field of attention training, in particular to an attention training method based on single-channel electroencephalogram. The attention training method based on single-channel electroencephalogram is used for solving the problem that the attention training method in the prior art cannot design different scenes for training according to different attention defect types of a trained person. The method comprises the following steps: step 1, accessing a database, and distributing different attention training scenes according to different types of attention defects; step 2, correctly wearing a brain cube electroencephalogram signal collector, and collecting real-time online electroencephalogram signals; step 3, preprocessing the electroencephalogram signal,and removing ocular artifacts to obtain a pure electroencephalogram signal; step 4, extracting attention characteristics to obtain the attention level of the current trainer; and step 5, controllinga virtual scene or an intelligent racing car scene through socket communication, serial port communication and Bluetooth communication. According to the method, corresponding different scenes can be designed for training according to different attention defect types of the trained person, so that the effect is better.