Sphagnum mosses play the important role in vegetation as frequently they act as edificators and dominants of wetland communities. This circumstance allows using them as bioindicators and enables estimation of the characteristics of phytocoenoses bypassing direct measurements of parameters of environment. For example, make it possible to assume the contents of chemical elements in these plants without carrying out of expensive and labour-consuming analyses. The purpose of the study is the estimation of correlation dependence between the content of chemical elements in different peatmosses and their ecological optima for soil fertility and soil moisture factors. Study objects are 26 moss species of genus Sphagnum L.: S. aongstroemii Hartm., S. angustifolium (C. Jens. ex Russ.) C. Jens., S. balticum (Russow) C. Jens., S. capillifolium (Ehrh.) Hedw., S. centrale C. Jens., S. compactum Lam. & DC., S. contortum Schultz, S. fallax (H. Klinggr.) H. Klinggr., S. fimbriatum Wilson, S. fuscum (Schimp.) Klinggr., S. girgensohnii Russow, S. jensenii H. Lindb., S. lenense H. Lindb. ex Savicz, S. lindbergii Schimp., S. magellanicum Brid., S. majus (Russow) C. Jens., S. palustre L., S. papillosum Lindb., S. riparium Angstr., S. rubellum Wils., S. russowii Warnst., S. squarrosum Crome, S. subsecundum Ness., S. teres (Schimp.) Angstr., S. warnstorfii Russ., S. wulfianum Girg, sampled in the territory of West Siberian plain in 2004-2009. Ecological optima of Sphagnum species for soil fertility and soil moisture factors were obtained in our previous study. The estimation of habitats of peatmosses is carried out on the basis of three indicator scales: L.G. Ramensky (1956), I.A. Tsatsenkin (1978) and D.N. Tsyganov (1983). Definition of element structure is dobe by neutron activation method in a research reactor of Tomsk Polytechnic University (Tomsk). Correlation dependence between the content of chemical elements in peatmosses and their ecological optima of different peatmoss species for soil fertility and soil moisture factors is estimated with the help of Spearmans rank correlation coefficient Correlation of ecological optima of Sphagnum mosses on three scales with concentration of K, Rb, Zn (factor of soil fertility) and Mn (factor of soil moisture) is established. Conditions of habitats of Sphagnum mosses can be used as indicators on the contents of these chemical elements.