Music score marking method and system based on playing information, medium and device

The invention provides a music score marking method and system based on playing information, a medium and a device. The method comprises the following steps: displaying a currently played music score on a display device; obtaining playing information of piano keys, judging whether playing is correct or not based on the playing information, marking notes of a music score corresponding to the piano keys as a first color when the playing intonation is correct and the rhythm is accurate, and marking notes of the music score corresponding to the piano keys as a second color when the playing intonation is wrong; when the playing intonation is correct but the rhythm is delayed, marking the musical notes of the music score corresponding to the piano keys as a third color; and when the playing intonation is correct but the rhythm is advanced, marking the musical notes of the music score corresponding to the piano keys as fourth colors. The music score marking method and system based on the playing information, the med