The invention discloses a high-adaptability led power supply with adjustable power. The high-adaptability led power supply comprises a bottom block, wherein an opening cavity with a downward opening is fixedly arranged in the bottom block, isolation blocks are symmetrically and fixedly arranged in the left end wall and the right end wall of the opening cavity, a winding set is fixedly arranged ineach isolation block, a conductive electrode is fixedly arranged on the outer surface of each winding set, a conductive wire penetrating through the upper end wall of the opening cavity is fixedly arranged on the upper end surface of each conductive electrode, insulating blocks are fixedly arranged on the left end wall and the right end wall of the opening cavity in a left and right symmetric mode, a guide rod is fixedly arranged between the insulating blocks, and a conductive block is fixedly arranged on the outer surface of the guide rod. The high-adaptability led power supply is simple in structure and convenient to use, the equipment adopts an automatic mode to adjust the illumination brightness, so that the energy utilization rate is improved, and meanwhile, a switchable motion mechanism is adopted, the flexible control of a barrier is realized, so that the working range and the efficiency of the equipment are improved, and the reliability of the equipment is improved.