Advertisement playing method and device

The invention discloses an advertisement playing method and an advertisement playing device. The advertisement playing method comprises the steps of acquiring an advertisement needing to be played; determining a suitable area for playing the advertisement; adjusting the size of the advertisement according to the suitable area; selecting a proper time point during a video playing process; and playing the adjusted advertisement in the suitable area in a popup manner by using the time point as a starting point for playing the advertisement. According to the advertisement playing method provided by the embodiment of the invention, the advertisement is played in the suitable area in the popup manner during the video playing process, so that the advertisement and the video appear on a display screen at the same time, and the video playing time is not occupied. The problem that in the prior art, the video playing time is occupied due to the fact that the advertisement is played in a title mode, an interstitial mode