The Mali Empire's collapse resulted from a combination of external invasions, economic shifts, and environmental stress, compounded by internal weaknesses.
The rise of the Songhai Empire and new trans-Saharan routes diverted gold and salt trade away from Mali, eroding its revenue base.
Desertification and prolonged droughts in the Sahel (14th–15th centuries) reduced agricultural output and disrupted caravan trade.
The spread of Islam challenged traditional beliefs, creating social tensions and weakening the ideological cohesion of the ruling elite.
These external forces, interacting with internal dynastic struggles and administrative overstretch, precipitated the empire's fragmentation and eventual absorption by Songhai.