| 释义 |
{{Infobox road
|country=JPN
|type=National
|route=312
|maint=
|alternate_name=国道312号
|map=
|image=Michinoeki Asago M10 02.JPG
|length_km=153.5
|length_round=
|length_ref=
|established=
|direction_a=
|terminus_a=
|junction=
|direction_b=
|terminus_b=
|browse=
}}National Route 312 is a national highway of Japan connecting Miyazu, Kyoto and Himeji, Hyōgo in Japan, with a total length of 153.5 km (95.38 mi). {{commonscat|Route 312 (Japan)}}{{Japan-road-stub}} 1 : National highways in Japan |