The invention relates to a portable solar refrigerating case. The portable solar refrigerating case comprises a solar cell panel, a voltage stabilization current stabilizer and a lock catch insulation layer. A semiconductor refrigerating module is arranged in a case body. The case body is further internally provided with a power module for providing electric energy generated by the solar cell panel for the semiconductor refrigerating module. A temperature sensor is arranged in the case body. The case body is further internally provided with a controller. The temperature sensor is connected with the controller and the power module. The controller is connected with the power module. The voltage stabilization current stabilizer is connected with the controller. The upper surface of the outer portion of the case body is provided with a liquid crystal display operation panel which is connected with the controller and the power module. The portable solar refrigerating case is simple in structure, reasonable in design and convenient to carry and use. The solar cell panel is used in the refrigerating case and a semiconductor refrigerating element is adopted for achieving refrigerating so that various requirements of people for refrigerating goods outdoors at a low temperature can be well met, and meanwhile the portable solar refrigerating case does not need to be connected with a power source in the use process and is convenient to carry..