The article shows the results of ergonomics diagnosis at the concrete mixer workplace. Above mentioned results constitute only a part of a widespread project which aims at integrated ergonomic diagnosis of workplace environment considering improving both technical conditioning and psycho-social conditioning. Foregoing researches were conducted in several companies in Silesian Voivodeship with regard to different work positions. The ergonomic diagnosis was done with the usage of tools as: Ergonomic Control Test CET II and Dortumd’s list. The remarks allowed to evaluate worker’s awareness of ergonomics, and to identify problems in this field.