Set 247 for win, Zimbabwe 'A' were never in the contest as they lost wickets on a regular basis.
Skipper Stuart Carlisle and Keith Dabengwa raised visions of a likely victory with a steady stand as they eased to 106 for six but a dramatic collapse which saw them losing their last eight wickets for just 58 runs dented their hopes as they capitulated for 164 off 36 overs.
Promising leg-spinner Mansoor Amjad, weaved a spinning web around the Zimbabwe 'A' batsmen scalping four wickets for 47 runs.
Earlier, batting first after winning the toss, Pakistan 'A' rode on a superb 104-run opening stand between Naumanullah and Ashar Zaidi to lay a firm platform for the rest of the batsmen.
Naumanullah hit a fluent 54 from 50 deliveries with the help of five boundaries and three sixes. South-paw Ashar Zaidi was less enterprising of the two, scoring a patient 67, laced with six boundaries.
Skipper Misbah also weighted in with a run-a-ball 58, studded with four fours and two sixes.
Medium-pacer Anthony Ireland was the best of the Zimbabwe 'A' bowlers ripping out four wickets for 40 runs.
Brief Scores: Pakistan 'A': 246/9 (50 overs). Zimbabwe 'A': 164 all out (36 overs)