A kind of adjustable feed supply device includes a carrying box body and a feed delivery wheel. The carrying box body includes the opening of a formation what bottom. The feed delivery wheel closes the opening and protrudes out part-structure from the opening, and the what carrying box body can rotationally be arranged with respect to the carrying box body and define an accommodating space with the Carrier box mates. The feed delivery wheel is formed with majority and is spaced each other and the adjustable groove of depth, to allow user that can control feed useful load according to self-demand. When the feed delivery wheel is rotated relative to the carrying box body, which cyclically appears the what external world from the accommodating space, and can carry out the supply amount of flexibly brew according to preset depth of groove.一種可調式飼料供給裝置，包含一承載盒體，及一飼料輸送輪。該承載盒體包括一形成於底部的開口。該飼料輸送輪封閉該開口並自該開口凸伸出部分結構，且可相對該承載盒體轉動地設置於該承載盒體並與該承載盒體相配合界定出一容置空間。該飼料輸送輪形成有多數彼此間隔且深度可調整的凹槽，以讓使用者可據自身需求來控制飼料裝載量。當該飼料輸送輪相對該承載盒體轉動時，該等凹槽循環地自該容置空間顯露於外界，並可依據預設的凹槽深度來彈性地調配飼料的供給量。
