The invention discloses an outdoor solar bathing house. The outdoor solar bathing house comprises a house body, a plurality of first heat collection pipes obliquely arranged on the top of the house body in a sunny mode, a plurality of second heat collection pipes vertically arranged between the first side wall and the second side wall of the house body, a water storage tank arranged in an accommodation space defined by the first heat collection pipes and the top of the house body, a shower arranged in the house body, a door, a plurality of ventilation holes formed in the side walls of the house body, a sun light guide assembly, a first lampshade and a second lampshade. The side walls of the house body comprise the first side wall and the second side wall from inside to outside. The sun light guide assembly comprises a lighting part which comprises a lighting pipe and a convex lens arranged at the top end of the lighting pipe. The first lampshade is sleeved with the second lampshade, and the first lampshade and the second lampshade are arranged at the lower end of the lighting pipe. By adoption of the outdoor solar bathing house, cold water can be heated through solar energy to meet the requirement of showering, sun light can further be fully utilized to serve as a natural light source for providing lighting in a showering room in the day, extra power consumption is not needed, energy is saved, and use is convenient.