The special search for the method of variation analysis allowing to re
veal the regularities in its manifestation was undertaken. It is shown
that in framework of current theory there was no place for attempt to
analyse the properties of variation. The elaboration of the modern me
thods of variation analysis is aimed primarily to enhance the mathemat
ical facilities that allow to increase considerably the number of trai
ts under consideration and to summarise the data on every trait. Such
methods allow to analyse the reliability of resemblances and differenc
es for the comparison of populations. separation of subspecies, etc.,
but they are nor suitable for the analysis of variation characteristic
s. The new approach to variation measuring allows to analyse the sum o
f traits, to estimate the probability of its combination and to reveal
the variation regularities. The criterion allowing to compare the var
iation in differently organized structures is proposed.