Introduction. The phenolic compounds originate from the metabolism of plants, being essential for their growth and reproduction, some of these compounds have antioxidant activity mainly due to their reducing properties whose intensity is fundamentally differentiated by the number of hydroxyls present in the molecule. Most of these compounds can be found in plant matrices, including fruit-growing residues. Objetives. Thus, this work aimed to evaluate the content of phenolic compounds and the antioxidant activity of plant extracts obtained from residues from Amazonian fruit production. Methodology. The 5 residues evaluated were: peach palm peel, peach palm bunch, acerola bagasse, mango peel, and açaí kernel, which were obtained in the local market and then dried at 40ºC for 48 hours, crushed and stored until the time of analysis. The extracts were obtained with 70% methanol and the quality of the extracts was verified in terms of total phenolic content (TFT) by the Folin-Ciocalteau method and antioxidant activity (AA) determined by the DPPH radical method (2.2- diphenyl-1-picryhydrazine). Results and discussion. After the analyzes were verified high values ​​of phenolic compounds for the materials, which varied between (82-102 mg EAG/g) and antioxidant activity ranging from 1004 to 8567 µMTEAC/g. The materials with the highest activity were peach palm husk and açaí kernel. It is possible that the contents of carotenoids and anthocyanins present in the peach palm and açaí kernel residues, respectively, had an impact on the results of both analyzes carried out on the materials. Conclusion. Thus, we verified that the results found to allow us to indicate such materials as a source of phenolic compounds with interesting values ​​of antioxidant activities.