The soundtrack of Spike was written by Huang Yinghua, a famous Hong Kong musician. It mainly includes 1 for guitar, violin and electronic drum, 2 for Abu and policewoman practicing martial arts on the roof, 3 for Erhu solo that tore his heart out when Abu died, and 4 for Sally Yeh's last cover. These include:

First, the music 1 has not been downloaded at present.

Second, Music 2 has not been downloaded yet.

Third, Music 3 is the erhu solo "Altun in My Heart" by erhu player Chen Jun. You can download it after searching, but the sound quality is not good, just to quench your thirst.

Music 4 is the heroine's cover of Sally Yeh's "Once Heartache", and this song is flying all over the sky.