The present invention mainly provides a bed turning device, which comprises: a mattress set, which is placed on a bed frame set, and is formed by connecting at least two mattress elements to each other, each of the mattress elements being at least one The mattress pivot is centered and can be rotated upwards, and each of the mattress elements is coupled to one side of the mutual abutting to respectively provide a plurality of engaging edges which are laterally protruded and have a predetermined spacing, and are worn by one And a pivoting rod is disposed in each of the engaging edges； at least one turning device is disposed under the bed frame group, and has a rotating frame group, wherein the central axis serves as a pivoting pivot of the rotating frame, on the central axis Having at least one rotator, when the turret is properly rotated, the rotator rotates synchronously, and the rotator is rotated upwardly toward one end of the rotator, and the mattress element is upwardly generated Rotating displacement； at least one driving device for driving the rotating frame to rotate by the rotating frame pivot, having a control module coupled with the driving device to transmit a control signal, the control module can control the driving Start and stop of device drive operations, and The driving device respectively generates driving of forward rotation or reverse rotation； thereby, the technology of partially lifting the mattress set by the rotating bracket structure by using the rotating frame group can achieve more accurate turning angle adjustment effect, and Can be placed directly on existing bed frames, with compatibility and reduced cost, regardless of whether it is turned over or lying down本創作主要係提供一種臥床翻身裝置，其包含有：一床墊組，係置放於一床架組上，由至少二床墊元件相互接設所形成，各該床墊元件分別以至少一床墊樞軸為中心而可朝上產生旋轉，各該床墊元件係於共同相互對接之一側，以分別設有側向凸伸且具預設間距之若干嵌接緣，並以一穿設樞桿共同穿設於各該嵌接緣內；至少一翻轉裝置，設於該床架組下方，其具有一旋架組，以一中軸作為旋轉之該旋架樞軸，於該中軸上設有至少一推移旋架，當該旋架組於適當旋轉後，該推移旋架則會同步旋轉，並使該推移旋架朝上旋動之一端同步推移其一該床墊元件朝上產生旋轉位移；至少一驅動裝置，為驅動該旋架組以該旋架樞軸產生旋轉，其
