PROBLEM TO BE SOLVED: To provide a liquid diffuser which is easy to handle without getting a hand dirty when a user exchanges a vaporizing structure.SOLUTION: The liquid diffuser includes: a container body 4 for storing liquid a cap 3 with a lid, the cap mounted on the container body 4 and a diffusing structure 2 for sucking up and diffusing the liquid stored in the container body 4 in the state of opening the lid 31 of the cap 3 with the lid. The diffusing structure 2 is formed of a diffusing body 20 and a diffusing body housing body 21 for housing the diffusing body 20 and immersing it in the liquid stored in the container body 4. The diffusing body housing body 21 of the diffusing structure 2 is locked and mounted on an opening edge 32 of the cap 3 with the lid.COPYRIGHT: (C)2013,JPO&INPIT【課題】ユーザーが揮散構造体の交換時に手を汚すことなく、取り扱いが容易な液体揮散具を提供すること。【解決手段】液体を貯留するための容器本体4と、容器本体4に装着される蓋付きキャップ3と、蓋付きキャップ3の蓋31を開けた状態で、容器本体4に貯留された液体を吸い上げ、揮散させる揮散構造体2とを備え、揮散構造体2を、揮散体20と、揮散体20を収容して容器本体4に貯留された液体に浸漬させる揮散体収容体21とで構成し、揮散構造体2の揮散体収容体21を、蓋付きキャップ3の開口縁32に係止して装着する。【選択図】図1