The present invention provides an urine collector, an urine collecting apparatus, and a sleeve body, in which the sleeve body is provided with an inlet and an outlet, and at least one non-return portion formed by protruding inwardly around the inner wall of the sleeve body and bending toward the direction of the outlet, and the outlet of the sleeve body is used for communicating with an urine collection bag. Thus, the penis of male genital organ may be extended into from the inlet of the sleeve body, and the urine is blocked by the non-return portion without being returned and is guided into the urine collection bag through the outlet.一種集尿器、接尿裝置及套體,其中,該套體具有一入口與一出口,以及至少一止逆部,環繞該套體之內壁朝內突出,並向出口方向彎折而形成,該套體之該出口用以與集尿袋連通;藉此,男性生殖器之陰莖自該套體的入口伸入其中,其尿液為該止逆部抵擋而不逆流,並循該出口導入該集尿袋。100‧‧‧集尿器10‧‧‧褲體20‧‧‧套體30‧‧‧導管40‧‧‧集尿袋41‧‧‧洩尿開關