The 1970–71 season was the fourth season of Mersin İdmanyurdu (MİY) football team in Turkish First Football League, the first level division in Turkey.

Mahir Turhan, Sezai Sak, Orhan Mutlu were executive committee member.

Preparation games: First League was played with 16 teams in its 13th season, 1970–71.

[36] The drawings and results Mersin İdmanyurdu (MİY) followed in 1970–71 Turkish Cup are shown in the following table.

Mersin İdmanyurdu (MİY) 1970–71 Turkish Cup game reports is shown in the following table.