Macrobenthic invertebrates in the intertidal zone of Barangay Tagpangahoy, Tubay, Agusan del Norte, a mining identified area, were assessed. One sampling was done during low tide on May 5 to 6, 2009. Transect quadrat method was used in an approximately 75,000 m2 study area. Three hundred twenty six individuals belonging to 39 species were found in the area. These samples belong to three phyla namely. Mollusca, Echinodermata, and Arthropoda. The top three most abundant species found were mollusks. These are Planaxis sp., Nerita sp., and Isognomonisognomon with the relative abundance value of 18.71%, 12.27%, and 8.90% respectively. Most of the macrobenthic fauna were arranged in a clumped distribution pattern, while the rest were dispersed uniformly. About 69.93% of the total numbers of individual present in the area were found in rocky substrate. Meanwhile, about 13.80% were found in the sandy rocky substrate, 10.43% were found in the sandy substrate, and only about 5.83% were found in the sandy muddy rocky substrate. The species diversity of the area is 3.00, which is relatively higher compared to reports from other related studies. The values of pH, salinity and temperature taken were within the normal range of these characteristics of marine water.