The intention of the work is to verify if the report of the Brazilian administration of the public company is an important element of evidenciação and an efficient instrument of economic and financial analysis of the companies, or if it is mere fulfilment of a legal formality. The reports of the administration are analyzed and respective financial demonstrations of the year of 1998, of 100 public company Brazilian, selected aleatoriamente of I register in cadastre it of CVM - the Commission of Movable Values. In the evaluation of the reports of the administration, the adopted method is - content analysis - (widely used technique in social sciences), its classification for adequacy to the criteria of evidenciação of the CVM and the ONU - Organization of the Joined Nations and the posterior comparison of the indices of adequacy gotten by the company, in the research, with some of its countable pointers. Additionally, it is verified correlation occurrence enters the level of adequacy of the reports of the administration of the examined companies, to the norms of the CVM and the ONU, and the transport of the independent auditors who revise its demonstrations countable. In the comparison of adequacy indices the test distribution free Wilcoxon Signed Ranks is applied. The correlation is examined by the calculation of the Coefficient of Correlation of Spearman between the 0 variable. Along with subsidiary inferences, the final conclusion of the work is of that, with a general average of 36 points, in 100 possible points to be reached in the attendance to the criteria of evidenciação of the CVM and the ONU, the reports of the Brazilian administration of the public company, in the 1998 exercise, if they give almost that exclusively to the mere fulfilment of a legal formality. They still have a long way to tread, until they can be considered as an important element of voluntary spreading of the companies Brazilian.