Both sides will now go on and play defending champions Lebanon before the first piece of silverware in the Asia Rugby calendar is decided.
Brook Tremayne gave Qatar an early lead after 10 minutes before wing Bader Bakaddouri scored the first of four tries on a fine performance.
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Ismaail El Hatmi, Jermaine Allen, Martin Murray, and Bakaddouri all added further tries for Qatar in the first half to leave the scores at 36-0 at the break.
Ryley Douglas, Allen, Bakaddouri (2), Patrick Mills, El Hatmi and Tom Featherstone all crossed the whitewash in the second half to secure an opening victory for Qatar before their final match against Lebanon on 5 April.