Ecological life is the one which satisfies man's ecological nature, has a me tabolism that does not overload natural environment, and is concistent to human society as a whole. A society which is designed, constructed and managed for man to live an ecological life is called an eco-police. The paper describes an ecological life and a n eco-police as an alternative to the current materistic, efficiency oriented and high ly stressed life and society, and argues that they provides a very pleasant, satisfactory and enjoyable life. It is also emphasized that it is an engineer's role to invent and design low entropy but attractive living facilities. No compulsory action may lead people to live an ecological life.
