The article views the problem of possibility and necessity of the organization and carrying out the anti-corruption examination of documentation for purchases of goods, works and services for the state needs is considered in the. The purpose of this examination consists in identification of corruptogenic factors in specified documentation, i.e. such provisions which can create conditions for emergence of the corruption relations, and in development of offers on their elimination. The description of the main corruptogenic factors in the documentation about purchases is given. They are: 1) discrepancy of the initial (maximum) price of purchased goods, works and services to the average market prices for this type or kind of goods, works and services; 2) the unreal time period provided by competitive documentation on delivery of goods, performance of work, rendering of services in the state contract; 3) overestimated requirements to participants of placement of the order, imposed for participation in competitive procedure; 4) excessive specification of the nomenclature of bought goods, works and services, requirements to the content of the performed works, provided services; 5) legal-linguistic uncertainty — the use in documentation about purchase of not settled, ambiguous terms and categories of estimated character. In the article the general methodological approaches to formation of a technique of anti-corruption examination of purchase documentation are formulated, ways of identification of all the designated corruptogenic factors are described. The following conclusions are drawn on complex nature of the anti-corruption examination: a) every document is exposed to the analysis in its interrelation with other documents which are a part of purchase documentation set; b) verification of tender documents should be focused not on some separate corruptogenic factor, but on their aggregate as they form close interconnection; c) the intended result of the introduction of anti-corruption examination of purchase documentation can be reached only if it is applied together with other means, forms and methods of anti-corruption activity. It is proved that the timely identification of corruptogenic factors and their elimination from competitive documentation is an important prophylactic way of the corruption prevention in the sphere of government procurements.