In Ivory Coast, the cultivation of the cashew tree (Anacardium occcidentale L.) contributes significantly to the influence and well-being of the populations of the Center and North areas where the poverty rate is high. One of the major constraints encountered is low productivity. The average yield of raw cashew nuts is 547 kg / ha compared to 1598 kg / ha in Nigeria and 9380 kg / ha in Vietnam in 2018. One of the efforts to increase productivity is the sustainable management of soil fertility. The aim of this study is to diagnose the level of chemical fertility of the soils of cashew orchards. Twenty-one orchards at least 20 years old were randomly selected from Korhogo County. Under these orchards, the soil was sampled between 0-30 cm depth. In each orchard, 21 composite samples each from 32 incremental samples were taken. These samples were analyzed for pH and nitrogen, phosphorus, potassium, calcium, magnesium, sodium, iron, zinc, copper and manganese contents. These values ​​obtained were compared to the critical limits in order to determine the level of fertility. The results show that the soils are acidic to very acidic. The carbon, nitrogen, potassium, magnesium, calcium, sodium and zinc contents vary from low to very low levels. The content of available phosphorus is good in some orchards. On the other hand, iron, copper and manganese have a high to very high level. Determining adequate manure can improve fertility levels.