The invention discloses a drum set rhythm correcting system based on image analysis. The system comprises a sound collecting unit, a signal conversion unit, a data transmission unit, a storage unit, an audio playing unit, a data collecting unit, an image collecting unit and a display unit. Every time a practicer completes playing, the playing rhythm of the practicer and standard rhythm are displayed in the mode of a broken line graph or a curve graph for comparison through the display unit, and therefore the practicer slowly adjusts own time point for playing each note according to the rhythm of each note in combination with the broken line graph or the curve graph to ensure the accuracy of the rhythm during playing.