A pulp-molded paper container is introduced herein, which comprises a top cover body, a bottom box body and at least one pivot portion. The top cover body comprises a top sidewall having an inner surface. The bottom box body comprises a bottom sidewall having an outer surface and a recess portion. A plane-to-plane contact is constituted with occurrence of a static friction force, between the inner surface of the top sidewall and the outer surface of the bottom sidewall, by way of an elastic deformation effect of the recess portion under a manner while the bottom box body and the top cover body mutually matched in a closed manner, whereby the static friction force can make a tight retention occurring along between the top cover body and the bottom box body.