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In recent year,datasets have become increasingly larger and more complex in a variety of fields with the development of the Internet and the improvement of computer performance.It is difficult to analyze them by using classical statistical methods and the new methods are required.Then,Symbolic data analysis (in short SDA) has been attracting much attention and have been studied as the one of useful methods for analyzing large and complex datasets.SDA is defined as an extended data analysis for more complex data (table) called "symbolic data (table) ".Typical symbolic data are the interval-valued data and the histogram-valued data.Here,we deal with the histogram-valued data and consider a principle component analysis (in short PCA) for the histogram-valued data.When we aggregate individuals into classes or have multi values for a single observation,the histogram-valued data are obtained.