This paper proposes environment-copying system using novel environmental data memory, which stores and reproduces haptic information in the real-world. The proposed environmental data memory treats the environmental characteristics based on momentum information, so that the size of the environmental data memory is able to be reduced. The proposed system reproduces the force information from the environment, and stimulates the human operator according to the environmental data memory in access space. Therefore, the human operator is able to feel the haptic sensation. By the experiments, the validity of the proposed method is confirmed.