Average edge connectivity is an important concept in the study of classical graph theory. However, it cannot be applied to the analysis of certain fuzzy problems. To address this problem, we introduce the definition of fuzzy average edge connectivity. In this paper, we study some properties of fuzzy average edge connectivity, including (1) fuzzy average edge connectivity of special fuzzy graphs, (2) fuzzy average edge connectivity of edge-deleted fuzzy subgraphs, (3) the bounds for fuzzy average edge connectivity of fuzzy graphs. In addition, we present algorithms on the connectivity parameter. Finally, practical applications verify the effectiveness of the theory and algorithms in communication networks.