An action-packed eight goal thriller saw the Seasiders progress to he next round, with goals from John Owen (2), Toby Jones, Alun Webb and George Harry.
Their next opponents in the competition, TNS, beat Prestatyn Town by 5 goals to nil, and there's no doubt Llandudno will have to be at their best to progress to the semi-finals.
Llandudno play TNS away in the Welsh Premier League before the two sides meet again in the Nathaniel MG Cup on the 30th of October.
Updated 20:07 - 4 Oct 2018 by Geraint Roberts
The full draw:
Llandudno vs TNS
Bala vs Connah's Quay
Cambrian and Clydach Vale BGC v Newtown
Cardiff Met v Haverfordwest County.