Kenya won by 88 runs after posting 230 for 7 in 38 overs at the Gymkhana Club Ground, Nairobi.
DM Gondaria led the chase with 68 off 84 balls, while Francis Mutua remained unbeaten on 40 and Sachin Gill added 35 before being run‑out.
Papua New Guinea were bowled out for 142 in 30.1 overs, with A Vala top‑scoring with 42, TP Ura 30 and Patrick Nou 18.
Kenyan bowlers Kabua Morea and Semo Kamea each took two wickets, conceding 47 and 55 runs respectively, while Vraj Patel and Shem Ngoche claimed three wickets each for PNG.
Francis Mutua was named player of the match.