Each team plays 120 games with 60 games each in the first- and second-half season. The half-season winner is eligible to advance to postseason.
Playoff Series: Best-of-Five
If a non-half-season winner team posses a higher overall winning percentage than any other half-season winner, then this team gains a wild card status and is eligible to play in the Playoff Series against the half-season winner with lower winner percentage. If the same team clinches both first- and second-half seasons, then the Playoff Series would be staged for teams with overall 2nd and 3rd winning percentage.
Taiwan Series: Best-of-Seven
The winner of the Playoff Series advances to Taiwan Series. If the same team clinches both first- and second-half seasons, then this team is awarded one win to start the Taiwan Series.
Ten (10) stadiums are used to stage professional games in 2020: Xinzhuang (New Taipei City), Taoyuan International, Taichung Intercontinental, Tainan, Tienmu (Taipei City), Douliu, Chiayi County, Cheng-Ching Lake (Kaohsiung City), Hualien and CTBC Charity Park (Pingtung County). During the past 30 years CPBL has played in 19 stadiums throughout Taiwan.
Each team is allowed to carry a 25-man active roster in the major league, including foreign players. Each team is allowed to register three foreign players on their active roster and play two simultaneously on the field.
One draft is held in June every year for amateur players with Taiwanese nationality.
August 31st is the trade deadline and the last day to register foreign players for the remaining of the season. Local players acquired after the trade deadline through waiver are not eligible to play in the post-season games.
The FA system was implemented starting the 2010 season. Players with 9 years of service will be granted FA while players with 3 years of service will be granted eligible abroad status with consent of the player’s club.
The minimum salary for CPBL major league players is 840,000 TWD per year. The average salary is 1.5 million TWD per year. (2009 data).
| March/April - Opening Day | July/August - All-Star Game |
| August 31st – Last day to register new foreign players; Last day to register local players to be eligible for post-season |
