This study aimed to classify and map information soil of the land the state of Paraíba by crossing information plans using GIS to identify areas favorable to the cultivation of cowpea. The methodology used was the Agricultural Zoning of the State of Paraíba and the digital soil map in a database developed in the SPRING 5.2.2 software where the soil was extracted information from the soil to the key basic formula of usability class land, and elaborated the classification of restrictive factors of salinity, effective depth, stoniness, fertility, erosion, drainability, slope and texture, and created at Legal, a language for the potential classification pedological soil under two management levels (B, C), due to the increase of the limiting factors: very high, high, medium, low and very low. The results showed that with the geoprocessing techniques provides satisfactory results in the spatial distribution of potential areas of cowpea culture; not have been mapped and identified areas with potential Very High for handling B and C due to the higher demand of the cowpea crop; small areas with the possibility of cowpea cultivation were not mapped due to the used working range; this assessment carried out regardless of weather conditions and therefore does not offer, alone, all the necessary elements for sustained exploration of culture; pedological areas with potential for cowpea cultivation increases considerably with the adoption of management C; the greatest potential for pedological cowpea cultivation of the Paraíba state land features in areas consist of Argisols and Latosols; and to a lesser potential Litholic Neosols and Luvisols. [ABSTRACT FROM AUTHOR]