Abstract: Traditional soil-based strawberry cultivation faces multiple challenges, including soil-borne diseases and pests, declining soil fertility, and the impacts of climate change. While three-dimensional elevated strawberry cultivation effectively addresses the issues associated with traditional soil-based methods, the current three-dimensional elevated strawberry cultivation system still encounters problems such as low planting density and uneven light distribution. These problems directly affect the growth, development, and final yield of strawberries. To solve the aforementioned issues, this study proposes a self-supplementary lighting rotational strawberry cultivation device while retaining the advantages of traditional three-dimensional cultivation. A comparative planting experiment was conducted between this new device and the conventional "H"-shaped elevated strawberry cultivation frame. First, the physical parameters of strawberry plants were measured to determine the structural dimensions of the planting trough frame. On this basis, the feasible solution domain for the radius, number of troughs, and angle of the cultivation frame under specific planting environment specifications was calculated. A radius of 0.85 m, 10 troughs, and an angle of 36° were selected as the basic dimensional parameters. Based on these parameters, a rotating disk main structure adaptable to rotational irrigation requirements and split-mounted planting troughs were designed respectively. Meanwhile, a fan-shaped combined adjustable supplementary lighting device was proposed according to the radiation characteristics of surface light sources in the space.In light of the sun's trajectory corresponding to the solar longitude on different dates, combined with the variation law that the illuminance first decreases and then increases during the planting cycle and the daily solar irradiance first gradually increases and then decreases, rotational schemes for different periods were proposed to solve the problem of light obstruction. For rainy and low-light weather, artificial light sources were introduced for supplementary lighting. Firstly, the photosynthetic response curve of strawberries was measured to determine the light compensation point and light saturation point of strawberries, providing a reference for the light intensity of artificial supplementary lighting in subsequent sections. To optimize the supplementary lighting effect, orthogonal simulation experiments were carried out to analyze and optimize the key parameters of the supplementary lighting device.The final optimal parameter combination obtained was as follows: the lamp installation position was 300 mm away from the rotation point of the device, the lamp tilt angle was 7°, and the middle lamp position was numbered 1. Simulation results showed that under this parameter combination, the average illuminance was 11701 lx, and the light uniformity was 55.98%. Actual supplementary lighting effect measurements were conducted based on the optimized parameters, and the results showed an average illuminance of 11926 lx and a light uniformity of 56.89%, representing an 11.37% improvement in uniformity compared with common supplementary lighting methods in greenhouses. After the completion of the whole device construction, a strawberry planting experiment was carried out. In the comparative planting experiment, the variation trend of the net photosynthetic rate of strawberry plants on the rotational cultivation frame was slightly different from that on the "H"-shaped frame. The data indicated that the rotational state effectively alleviated the "midday depression of photosynthesis" in strawberries and ensured the uniformity of light distribution. The average growth rate of plant height in the rotational frame cultivation was 0.518, which was close to 0.537 of the "H"-shaped frame. Other photosynthetic parameters were also relatively close to those of the "H"-shaped frame, verifying that the cultivation effect of this rotational frame could reach a level comparable to that of the "H"-shaped frame. This study can provide a reference for the three-dimensional cultivation mode of cash crops such as strawberries and the self-supplementary lighting mode of related devices.