The aim of the text is to adress the issue of 17th and 18th century architecture in Blato on Korčula. The introduction primarily deals with the historical overview of the wider region, that is, Venetian Dalmatia, in order to better understand the timing of the placement of buildings in the texst. Then, the historical image of the island Korčula was treated as a separate element in the Dalmatian area, and Blato as a place of historical and architectural work. The architecture of the 17th and 18th centurie in Venetian Dalmatia has been specially elaborated. Some examples of architectural heritige in Blato up to the 17th century are cited,which are followed with description of Blatoʹs baroque architecture. The analysis of baroque architecture is divided into two parts, the analysis of sacral and profane architecture. The sacral architecture consists of the parish church and its bell tower and the lodge. The profane architecture includes castles, of which the Arneri family castle is treated, as the most important and preserved example. Examples of their significance within the socalled peripheral Baroque architecture of Dalmatia are also noted.