Professional Aceval began in the youth system of Colo-Colo and made his professional debut on August 18, 2001 with
Colo-Colo against Huachipato. While with Colo Colo, Aceval starts receiving acclaim for his long range shooting. After the 2006 Clausura championship with Colo-Colo, he made a loan move to
O'Higgins before returning to Colo-Colo. While with Colo Colo, Aceval was a key player in helping the club to
Chilean Primera División titles during the 2002 Clausura, 2006 Apertura, 2006 Clausura, and 2007 Clausura. In 2008, Aceval went to play for a short spell with Uruguayan club
Defensor Sporting, then he made his return to the Chilean league with
Huachipato. After his brief spell with Huachipato, he signed with
Unión Española. While with Unión Española, Aceval appeared in 48 league matches and scored 9 goals. For the 2011 season he joined
Universidad de Concepción and scored 5 goals in 30 appearances. Aceval left Chile at the end of the 2011 season signing with
Toronto FC on January 30, 2012. He scored his first goal on a free kick for Toronto FC against
Santos Laguna in the
2011–12 CONCACAF Champions League semifinals on March 28, 2012. On June 18, 2012, Miguel Aceval, along with two other Toronto FC players, were arrested in Houston and charged with public intoxication. On July 26, the club had announced that they had terminated Aceval's contract.
International Aceval received his first call up and played for the
Chile national team on September 4, 2011 in a friendly against
Mexico. ==Honours==