Аннотация:The seismic scale project is based on MMSK -92 scale [Shebalin, Aptikaev, 2003] consistent with the MSK-64 scale. The problem of seismic intensity scales classification is examined from measurement theory point of view. Some principal rules of scale classification and characteristics of different rank scales are adduced. The seismic scale uniformity verification is executed. It is showed the intensity scales of Mercally type have the rank of the interval scale. Therefore for this scale can be applied all the arithmetical procedures: it is possible to obtain the mean value and corresponding standard deviation, transfer the results of microzonation using small seismic source into strong ground motion domain. Macroseismic scale is based on response of two object groups. The first group contains buildings, people, household articles. For these objects the statistical properties are determined. The second group of objects has not estimations of standard deviation or these values are too large. The last group contains pipelines, transport- constructions and natural phenomena on the Earth surface. Special group is seismological data: earthquake magnitude, faulting type, distance between source and point of observation and ground condition at this point. For the each object group is determined the intensity interval for calculation. The relations to estimate mean intensity using data of equal objects and different ones are proposed. The accuracy of results is estimated. Special attention is paid to instrumental part of seismic intensity scale. It is shown that many of suppositions have been used by developing of instrumental scales are wrong. Improved empirical relation intensity/wave parameters are obtained. The calculations are provided for amplitudes of acceleration, velocity, displacement, acceleration + duration, seismic wave power. The intensities estimated on the present scale coincide with those obtained using other seismic scales of the Mercalli family within the limits of determination accuracy.