Needing a draw to be sure of finishing ahead of nearest challengers Ulsan Hyundai, Jose Morais’ team were rarely troubled by Daegu and by half time the destination of the title was beyond doubt.
Veteran striker Lee Dong-gook, playing in his final league game ahead of retirement, sought to add to his K-League record scoring tally early in the game, only to send his shot high into the stands.
But Cho made amends for Jeonbuk three minutes before the half hour mark when he headed in from six yards out after a pin-point cross from Choi Chul-soon ensured the striker completed a fine move with the opener.
With five minutes remaining in the half, Cho struck again, this time stroking his effort home after Modou Barrow had seen his initial shot blocked by the Daegu defence.