Soufiane El Mesrar (2nd), Achraf Saoud (3rd), Raiss El Fenni (18th) scored the goals of the Atlas Lions in the first half.
In the second half, Bilal Bakkali (28th), Othmane Boumezou (31st) and Soufiane Borite (34th) scored the three remaining goals allowing the national team to win the 3 points.
Morocco will face next Thursday (at 6 p.m.) Thailand in the 2nd day game, while the Solomon Islands will play against Portugal.
The second match of Group C will oppose tonight (6 p.m.) the Portuguese team to its Thai counterpart.