when was the 3 point line added in college

The three‑point line was officially added to men’s college basketball for all NCAA conferences in the 1986–87 season, after being adopted by the NCAA in April 1986.

Before that, only certain conferences had experimented with a three‑point line in the early 1980s, but 1986–87 was the first season it became a universal rule across college basketball.

So if you’re thinking “from what season on did every college game have a three‑pointer?” — the answer is: starting with the 1986–87 NCAA season.

TL;DR: The 3‑point line became standard in college basketball in the 1986–87 season.

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