Efforts to improve the welfare of small fishermen in the conservation area of small Kei Kecil Island Park by increasing the number of small-scale fishing fleets from year to year without effective and efficient management of fisheries managers have led to competition between fishery fleets, leading to overcapacity. This study aimed to determine the competition pattern of small-scale fishing fleets in the conservation area of small Kei Island Park every season based on clustering. This study used a survey method, selecting respondents by purposive sampling techniques. Data were analyzed using descriptive and cluster analysis of the square Euclidean distance method. In this study, the fishing grounds of small-scale fishing fleets each season were concentrated in the waters of ten islands. The dendrogram described the small-scale fishing fleets operating in the conservation area of small Kei Island Park, which were competed widely and fiercely in each season. Competition among the small-scale fishing fleet was intense during the western season in Cluster 1, the first transition season in Clusters 1 and 3, the eastern season in Clusters 1 and 3, and the second transition season in Clusters 1 and 3. Catches, revenues, and operating costs influenced the competition that occured in each season.