视障口述影像服务（英文：audio description，或descriptive video service），简称口述影像，是一种透过口语或文本叙述，将视障者无法接收的影像消息转换成言辞符号，让视障者也能克服视觉障碍，协助他们克服生活、学习和就业环境中各种影像障碍的服务。简单地说，口述影像就是把「看见」的「说」出来。

视障口述影像服务 与应用的范围从对电视、电影、戏剧、博物馆展览、自然景观的口语描述、到教科书插图之文本解说等，乃至对任何视觉属性之传播媒介消息的口语转述皆属之。

以电影为例，口述影像便是在不干扰正常节目的声音频息和对白的情况下，将影片中的视觉成分，如空间布景、场景、人物表情、动作等用语言加以解释与描述的技术。

Audio description, also referred to as a video description or more precisely called a visual description, is an additional narration track intended primarily for blind and visually impaired consumers of visual media (including television and film, dance, opera, and visual art). It consists of a narrator talking through the presentation, describing what is happening on the screen or stage during the natural pauses in the audio, and sometimes during dialogue if deemed necessary.