The champions league round was the next stage from the regional stage of 2019 Thai League 4. The winners and runners-ups of each regions would qualified to this round to finding 4 clubs promoting to 2020 Thai League 3.
<small>Note:</small>
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Winners, runners-up, third place, and fourth place of 2019 Thai League 4 would promoted to 2020 Thai League 3.
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Muang Loei United won 7âÂÂ3 on aggregate.
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2âÂÂ2 on aggregate. Wat Bot City won 6âÂÂ5 on penalties.