To provide a disk-shaped washing brush which does not give rise to clogging in spite of continuous washing of the front surface of a disk-shaped information recording medium W, is capable of maintaining good washing efficiency and is highly durable.

The disk-shaped washing body for washing the wash by removing the dust 16 and foreign matter 17 sticking to its surface is provided with an opening 3 to allow the passage of a shaft S at its central part. Plural washing bodies are radially disposed at both or either one surface of the front surface and rear surface of the disk-shaped member. In such a case, the washing bodies are brush bodies 8 formed by using brush hair materials 12.