The invention discloses a solar electro-osmosis model experimental device and an application method. By using the device disclosed by the invention, quantitative evaluation can be carried out on a soft soil reinforcing effect of a solar electro-osmosis technology on the one hand, and on the other hand, an experimental method for how to reasonably use a storage battery and how to reasonably select the solar panel power is provided. Meanwhile, the experimental device disclosed by the invention has the advantages of efficient utilization of solar energy, reliable data acquisition, simple structure, simple and convenient operation and the like.