This is a list of the 1988 PGA Tour Qualifying School graduates. 52 players earned their 1989 PGA Tour card through Q-School in 1988. The tournament was played over 108 holes at the PGA West (Nicklaus Resort course) and La Quinta Hotel Golf Club (Dunes course), in La Quinta, California. [1] Those earning cards split the $100,000 purse, with the winner earning $15,000. [2]
| Place | Player | Notes |
|---|---|---|
| 1 |  Robin Freeman | |
| 2 | Brad Bryant | |
| 3 | Don Reese | |
| T4 | John Adams | Runner-up at 1982 Hall of Fame PGA Tour event |
| Billy Andrade | ||
| Robert Thompson | ||
| T7 | Webb Heintezlman | |
| David Tentis | ||
| T9 | Ray Barr Jr. | |
| Nolan Henke | Winner of 1986 Porter Cup | |
 Jack Kay Jr. | Winner of 1986 Eisenhower Trophy | |
| Billy Pierot | ||
| Tony Sills | ||
| T14 | Ed Humenik | |
 Miguel Ángel Martín | ||
| 16 | Karl Kimball | |
| T17 | Mark Hayes | 3 PGA Tour wins |
| P. H. Horgan III | ||
| Ronnie McCann | ||
| Larry Silveira | ||
| T21 | Bill Buttner | |
| Rex Caldwell | 1 PGA Tour win | |
| Billy Mayfair | Winner of 1987 U.S. Amateur | |
| Mike Miles | ||
| Ted Schulz | ||
| Don Shirey Jr. | ||
| T27 | Roy Biancalana | |
 Trevor Dodds | ||
| Duffy Waldorf | ||
| Bob Wolcott | ||
| T31 | Bob Estes | |
| Tony Grimes | ||
| David Jackson | ||
| Gregory Ladehoff | ||
| J. L. Lewis | ||
| T36 | Jim Booros | |
| Clark Burroughs | ||
| Jay Delsing | ||
| Fred Funk | Winner of 1984 PGA Assistant Championship | |
| Jeff Hart | ||
| Steve Hart | ||
| Kent Kluba | ||
| John McComish | ||
| Rick Pearson | ||
| Lance Ten Broeck | Winner of 1984 Magnolia State Classic | |
| T46 | Charlie Bowling | |
| Rick Dalpos | ||
| Joel Edwards | ||
| Ray Stewart | ||
| Billy Tuten | ||
| Greg Twiggs | ||
| Doug Weaver |