Abstract. The life quality research is in fact a major field of the analysis on the social and economic evolution of a country. The living standard (life quality) keeps on being a quite sensitive issue as it implies a number of both methodological and or organizational aspects. The most frequently the life quality is studied on the basis of the surveys being organized at the households level.

These surveys (investigations at random) must be achieved in such a way that, by extending the data, they allow us to stick with the fore casted margin of error. This is specifically the reason for this material to briefly bring up the methodology which is applying when organizing a survey. Out of the immensity of data we have selected, after processing them, those conclusions which we considered as being the most significant for suggesting the life quality in Romania. The work includes tables and graphs, being abundantly thrown into relief by absolute and relative data.

Keywords: households survey; sample; population; structure; indicator.