Animals are creatures created by God that always coexist with other living things such as humans and plants. Nowadays, cases of gambling in cockfighting arenas are rife, this is due to the lack of human awareness of the negative impacts of gambling and the importance of animal welfare. This study was conducted to analyze criminal law policies and legal liability in dealing with gambling crimes in the cockfighting arena in Indonesia in terms of Case Number 148/Pid.B/2020/PN Pol. The research method used in this study is a normative legal research method using the Legal Approach and Case Approach. Based on the results of research and analysis, it is known that legal arrangements related to criminal acts of gambling in cockfighting arenas in Indonesia have been regulated in Article 303 and Article 303 Bis of the Criminal Code. Furthermore, in Case Number 148/Pid.B/2020/PN Pol. has imposed an appropriate punishment for the perpetrators of the crime of gambling in the arena of cockfighting. The government needs to pay more attention to cockfighting gambling and strengthen regulations on penalties for gambling offenders. in addition, the public should also raise awareness of the negative impact of gambling and the importance of animal welfare.