The invention provides a device for updating teaching recording and broadcasting data, which includes a voice data updating unit and a courseware data updating unit, and realizes the replacement operation of the text content formed by recognizing the voice data and the old and new courseware data, especially the PPT courseware data. After the recording of the teaching process is completed, the purpose of updating the formed teaching recording and broadcasting data. Using the device of the present invention, after the recording of the teaching process is completed, the problems of wrong speech, omission of speech and substandard expression in the teaching process are solved by updating the voice data, and the new and old courseware can be replaced by the new courseware. The courseware is displayed to users who study the teaching recording and broadcasting data, so that after the teaching process is completed, that is, after the teaching recording and broadcasting data is formed, the problems existing in the teaching process can still be remedied and improved through updating operations.