Abstract: Early Frankfurt School recieved the thought of Neo-Marxist pioneers and correctly illustrated the relationship between mankind and nature in the unscrambling of early Marx's works. They emphasized that the concept of practice was the foundation stone of Marx's philosophy and demonstrated the essence of practical materialism raised by Marx. Although the theorists of early Frankfurt hadn't completely understood the essence of Marx's philosophy, their approach pressed close to the orientation of philosophical development started by Marx. They broked through the interpretive pattern of traditional Marxist philosophy which had clear marks of old materialism and offered us the valuable reference for reunderstanding the essence of Marx's philosophy and it's modern importance.