A method and a device for synchronously recording and reproducing slides and live presentation speech are provided. The method comprises the following steps: first, converting the format of electronic slides into a webpage display format, and storing the electronic slides in a server; then, remotely selecting and remotely playing the electronic slides, synchronously recording live presentation speech when playing the electronic slides through operation at a client, and storing the operation information in the server; and finally, uploading the live presentation speech to the server, packaging the live presentation speech, the operation information and the electronic slides, storing the PPT package in the server, parsing the operation information data, and synchronously playing the slide content and the speech. The device comprises a server, and a first client and a second client which are in communication connection with the server. According to the invention, the slides are remotely controlled, and slide speech is synchronously recorded in the remote control process, so that the problem that the traditional video recording process is complex and costs high, the problem that it is difficult to share a large video online, and the like are well solved.