두룽어에는 총 28개의 자음이 있다.
| bilabial | stop | p b |
| bilabial | nasal | m |
| alveolar | sibilant affricate | ts dz |
| alveolar | sibilant fricative | s z |
| alveolar | stop | t d |
| alveolar | lateral approximant | ɹ |
| alveolar | lateral approximant | l |
| alveolar | nasal | n |
| alveolar | lateral fricative | ɬ |
| alveolo-palatal | sibilant affricate | ts\ dz\ |
| alveolo-palatal | nasal | J_+ |
| alveolo-palatal | fricative | s\ |
| labio-velar | approximant | w |
| velar | stop | k g |
| velar | nasal | N |
| velar | non-sibilant fricative | x |
| palatal | fricative | ç |
| palatal | approximant | j |
| palatal | nasal | ɲ |
dz\lam ⇔ dz`lam 습관