Santa Catarina, at Southern Brazil, represents a transitional biogeographic area, from Tropical to Temperate climatic zones. Tropical reef fauna has Santa Catarina (maximum Latitude - 28.76) as a latitudinal limit of distribution, where the rocky reefs provide several systemic functions and related ecological services to society and are in constant threat due to anthropogenic and climatic variables. This region was recently recognized as a hot spot for climatic change in the south Atlantic. Sessile invertebrates tend to respond to these rapid changes, frequently showing increasing or decreasing distributional ranges. Therefore, it is important to provide current data for benthic diversity, as baseline information to understand possible future changes on communities. From primary data and bibliographic survey from 1978 to 2017, we created a database containing information on shallow (0-28 meters depth) marine sessile invertebrates of hard substrate and their distribution along Santa Catarina coast. We organized data provided from MAARE project (www.maare.ufsc.br), peer revised papers and thesis, from the metadata (e.g., sites, coordinates, habitat characteristics, method and unity used, reference) to biological data (e.g., taxon classification). We updated the taxa classification that is in disuse according to the World Register of Marine Species (WoRMS). By compiling all this information, this is the biggest database for marine sessile invertebrates on the hard substrate in Santa Catarina, acting as a baseline for the sessile benthic community in a conducive environment to be impacted by climate change and anthropic activity.