The following is a list of mainland Chinese films first released in year 2004.
| Title | Director | Cast | Genre | Notes |
|---|---|---|---|---|
| Baober in Love | Romance | |||
| Brothers | Drama | |||
| Day and Night | Drama | |||
| Delamu | Documentary | |||
| Electric Shadows | Drama | |||
| Green Hat | Drama | FIPRESCI Prize winner at the 2004 International Thessaloniki Film Festival. | ||
| House of Flying Daggers | Wuxia/Historical/Romance | Screened at the 2004 Cannes Film Festival | ||
| Jasmine Women | Drama | |||
| Jingzhe | Drama | |||
| Drama | ||||
| Last Love First Love | Romance | China-Japan co-production | ||
| Letter from an Unknown Woman | Romantic drama | Best Director at the 2004 San Sebastián International Film Festival | ||
| Manhole | Comedy/Crime | |||
| The Master of Everything | Action/Comedy | |||
| The Parking Attendant in July | Drama | |||
| Passages | Drama/Road | Screened at the 2004 Cannes Film Festival | ||
| Pirated Copy | Drama | |||
| Plastic Flowers | Drama | |||
| Shanghai Story | Drama | 2004 Golden Rooster for Best Film | ||
| Star Appeal | Yu Bo Guifeng Wang | Science fiction LGBT-related drama | ||
| This Unusual Vacation | Children | |||
| Two Great Sheep | Drama | |||
| White Gardenia | Romance | |||
| The World | Drama | |||
| A World Without Thieves | Drama | |||
| Zhang Side | Biographical/War | |||