Provided is a method for evaluating the freshness (redox degree) or the like of a substance being tested such as an agricultural crop, on the basis of analysis results of a plurality of sulfur compounds and a plurality of sulfur metabolism related compounds. Also provided is a method for quantifying a volatile low molecular weight sulfur compound by liquid chromatography mass spectrometry. This method for evaluating a sulfur compound-containing substance by evaluating a plurality of substances being tested for is characterized by comprising: a step of preparing, for each substance being tested for, a quantitative value of a plurality of sulfur compounds and a plurality of sulfur metabolism related compounds; a step of analyzing analysis values of the substance being tested for, including the quantitative value, by multidimensional scaling, to create a scatter diagram having at least two types of scale selected from the group comprising a redox degree, a microbial metabolism contribution, an antioxidant capaci
