The economic growth of the West Asia and North Africa slowed down sharply in 2017，mainly due to poor economic conditions in oil exporters，and is expected to accelerate in 2018. The downward pressure mainly comes from geopolitical tensions and conflicts，increased oil price fluctuations，decreased public spending against fiscal consolidation，and the sluggish reforms. The economic growth of Sub-Saharan Africa doubled in 2017 than that of in 2016. Against the backdrop of slowing global growth，the economic growth of Sub-Saharan Africa is expected to slow down in 2018. The downward risks to the region’s economic growth mainly come from the fact that global economic growth lower than expectation，the escalation of global trade tensions and the tightening of financial environment，the sluggish structural reforms and the poor quality of fiscal adjustment.