Promotion of cooperatives and cooperative groups in aquaculture is meant to uplift farmers by providing better input services while linking output market. Therefore, this paper empirically investigates the factors that influence small-scale shrimp farmers to participate in the collective economic organization and their intensity of participation by surveying 254 shrimp farming households in the Mekong River Delta’s Soc Trang province, Vietnam. By using binary logistic model approach, it was determined that farmers with higher education level, longer farming experience, larger farming area, higher farm-gate price, closer to the collective economic organization’s site, having loans and attending more training courses are more likely to participate in the collective economic organizations. The study also provides several implications of policies supporting the expansion of the collective economic production forms, thus, upgrade the small-scale shrimp farming industry