間學校舉辦嘅課外活動約莫有60項，計有學術、服務、體育、藝術、興趣同埋宗教等。每名學生至少要參加一項活動。學生亦都會參與埋社區服務，制服隊伍有深資童軍團、童軍同紅十字會青年團。其他啲服務小組有少年警訊、公益少年團、忠愛大使小組、電視媒體製作服務組、環保大使訓練團同埋圖書館小組等 。喺課餘時間學生都參加得由專業導師教授嘅管樂團、銀樂隊、敲擊樂小組、口風琴小組、無伴奏合唱小組、手鈴隊、舞蹈班同空手道班等 。校內嘅「少年警訊銀樂隊」就由蔡功譜中學與九龍城區少年警訊喺2007至2008學年合辦而成。
There are about 60 extra-curricular activities organized by the schools, including academic, service, sports, arts, interests and religion. Each student is expected to participate in at least one activity. Students are also involved in community service, with uniforms such as the Scouts, Scouts and Red Cross Youth Corps. Other service groups include the Junior Police Call, the Community Junior Corps, the Loyalty Ambassador Group, the Television Media Production Services Unit, the Environmental Ambassador Training Corps and the Library Team. In their spare time, students can participate in wind ensembles, silver bands, percussion groups, melodica groups, a cappella groups, handbell groups, dance classes and karate classes taught by professional tutors. The school's JPC Silver Band was jointly organised by Choi Kung Pu Secondary School and the Kowloon City District JPC in the 2007/2008 school year.