Abstract The concept of 0 dimension,1 dimension ,2 dimension,and 3 dimension,the more high dimension,until infinite dimension ,namely the concept of gradually increasings of dimension is non-existence.Instead,there is only a concept of infinitely great that is an one quantitative continuum. The space we see is just the defference of 1 dimension finite quantities and infinitely great quantities that is open space and is implied by change of direction .The accurate description of this one quantitative continuum is that its parts are connected each other as a unity at the infinite distance（infinitely great）relative to any orientation (all orientations)of our existence.it is unity in which its random parts is this infinitely great quantities and thus we call this unity as infinite quantities of infinite dimensions.