| Season | 1998 |
|---|---|
| Champions | Universitario 22nd Primera División title |
| Relegated | Lawn Tennis |
| Copa Libertadores | Universitario Sporting Cristal |
| Copa CONMEBOL | Sport Boys |
| Copa Merconorte | Alianza Lima Sporting Cristal Universitario |
| Top goalscorer | Nelson Esidio (25) |
← 1997 1999 → | |
The 1998 season of the Torneo Descentralizado was the 83rd season of the top category of Peruvian football (soccer). It was played by 12 teams. The national champion was Universitario.
The national championship was divided into two half-year tournaments, the Torneo Apertura and the Torneo Clausura. Each was played on a home-and-away round-robin basis. The winners of each would play for the national title in a playoff. If the same club had won both tournaments, it would have won the national championship automatically.
Following-season Copa Libertadores berths went to the winner of each tournament, while the runners-up played for a Copa CONMEBOL spot. The bottom team on the aggregate table was relegated, while the eleventh place held a relegation/promotion playoff against the winner of the Segunda División (Second Division).