The Banda Sea and the Maluku Sea affect the Banggai waters which have a lot of life in them. Because of this, the waters around Banggai are one of the best places for fishing in the world. The productivity of Banggai waters cannot be separated from the influence of the sea, such as the phenomenon of upwelling. Upwelling is an important process that transports nutrients to biological systems connected to food webs in the water column. There are many areas with indications of upwelling in Indonesia, one of which is in the western Maluku Sea near Banggai. This study intends to investigate the characteristics of the upwelling phenomenon by analyzing the historical fertility of Banggai waters through two main indicators, namely sea surface temperature (SST) and chlorophyll-a, using satellite imagery data. Analysis was performed using 4 kilometers SST spatial resolution data (NOAA AVHRR Pathfinder Version 5.3 Collated Global) and chlorophyll concentration (SMI Warna Laut). The results of chlorophyll-a dispersion patterns from 1998 to 2022 were collected in August 2004, 2006 and 2015 at 23 -24°C. This is related to the El-Nino period; El-Nino showed a value of 0.6 in 2004, 0.5 in 2006, and 2.2 in 2015. Based on this study, the distribution of chlorophyll-a in Banggai was greatest during the El Nino period.