To provide a conveyance device of head vegetables such as onions capable of stabilizing an attitude of a head vegetable such as an onion in a short conveyance distance, and preparation apparatus.SOLUTION: The conveyance device for conveying head vegetables each having a head formation part, outer leaves, and roots, includes: a conveyance section having two rollers disposed in parallel and mutually inwardly rotating, clamping the outer leaves between the two rollers, and conveying the head vegetable in a direction of a rotary shaft of the rollers; and a guide member disposed on the upper side of the conveyance section and extending in the conveyance direction of the conveyance section. The guide member includes a first guide part that, as it extends from the upstream side of the conveyance direction to the downstream side, moves from one roller side to the other roller side.SELECTED DRAWING: Figure 20【課題】玉ねぎ等の結球野菜の姿勢を短い搬送距離にて安定化させることができる結球野菜の搬送装置及び調製装置を提供すること。【解決手段】結球部と外葉と根とを有する結球野菜を搬送する搬送装置であって、並列して配置され且つ互いに内向きに回転する2つのローラを有し、前記2つのローラの間に前記外葉を挟持してローラの回転軸の方向に結球野菜を搬送する搬送部と、前記搬送部の上方に配置され且つ前記搬送部の搬送方向に延設された案内部材と、を備え、前記案内部材は、前記搬送方向の上流側から下流側に延びるにつれて一方のローラ側から他方のローラ側へと移行する第1案内部を有している。【選択図】図20