In terms of technology and methods，the paper is the necessary supplement for the technical report on The Growth Evaluation System of China’s Public Culture Investment. The technical report focuses on the quality assessments of the coordination and balance of the public culture investment growth，the explanation of the method design and calculus technology processing. This paper emphasizes on the gap measurement for the coordination and balance of the public culture investment growth，which measures all the kinds of ought-to-be target and the ideal distance of the growth target. From the data range，this paper makes a supplement to the general report and ranking report. The general report and ranking report mainly analyze the dynamic situation since 2000 and the expected growth target to 2020. The paper mainly measures the current annual ought-to-be growth gap and makes comparison among different provinces.