The present invention provides a waste ink liquid absorber for a waste ink tank of an inkjet-type recording apparatus, which comprising: an impregnation liquid containing at least one selected from the group consisting of a water-hardly-soluble resin; a water-soluble resin; and both of a moisturizing agent and a base; the impregnation liquid being included at least a part including a surface coming into contact with a waste ink, a waste ink tank having the waste ink liquid absorber, and an inkjet-type recording apparatus having the waste ink liquid absorber.