[Summary][Problems to be solved] A wearable toilet seat in which the assembly must be done easily, air leakage or leakage of the solution must be absent inside the main body, and the excretory substances can be washed out appropriately.[Means for solving the problems] The back cover portion 11 is fitted at the main body of the toilet seat 10 equipping the defecated fecal receiving portion 14 and the discharged urine receiving portion 15 from the back side and the bottom surface of the main body 10, the rinse solution nozzle 17 equipping the upward spray nozzle 43 and the horizontal spray nozzle 44 and the wind-guide long hole 25 opening upward are arranged as facing the defecated fecal receiving portion 14 in the main body 10, the anterior cover portion 12 is covered on the wind-guide long hole 25 as having a gap in a manner that the air blasting route 46 is on the wind-guide long hole 25, and the assembly ligula 90 of the frontal marginal region of the anterior cover portion 12 is fixed with the assembly ligula 21 of the defecated fecal receiving portion 14 and the assembly ligula 36 of the discharged urine receiving portion 15 at the hip receiving portion 13.