The study of the level and dynamics of changes of productivity of individual sectors allows to evaluate possible effectiveness of the resources used as well as identification of sources of production growth. It shows the extent to which changes in the level of the industry is dependent on factors of work and capital. The aim of the work was to study the efficiency of production factors in the fish processing industry in Poland in the years 2005-2016. To determine the rate of changes of the efficiency of the production factors there were indicators used that were based on production, employment and gross value of fixed assets. The study showed that in the fish processing industry there was a general growth tendency of labor productivity. There were also observed adverse changes in capital productivity. The greater impact on the level of production has a capital factor than the level of employment. In addition, the value of production increased at a rate faster than the total expenditure of factors shaping it.