Movable seedling bed

The utility model relates to the field of seedling raising equipment, and discloses a movable seedling raising bed which comprises a machine frame, lifting mechanisms for driving the seedling raising bed to ascend and descend are symmetrically arranged on the machine frame, each lifting mechanism comprises two supporting frames which are symmetrically arranged in parallel, two transmission rods are rotationally connected to the two supporting frames, chain wheels are fixedly connected to the two ends of each transmission rod, and the chain wheels are fixedly connected to the two ends of each transmission rod. A chain is meshed between every two chain wheels located on the same side in the vertical direction, a plurality of installation frames are horizontally arranged on the chains jointly and evenly distributed on the chains, the installation frames on the opposite chains on the two lifting mechanisms correspond to one another in a one-to-one mode, and a conveying belt is horizontally arranged on each instal