The is a 26.8 km Japanese railway line operated by the private railway operator Nagoya Railroad (Meitetsu), which connects Biwajima Junction in Kiyosu with station in Kakamigahara. Together with the Meitetsu Kakamigahara Line, the line forms an alternate route of the Meitetsu Nagoya Main Line between and .
<span style="color:black;">âÂÂ</span> (L)<br /> <span style="color:green;">âÂÂ</span> (S)<br /> <span style="color:deepskyblue;">âÂÂ</span> (E)<br /> <span style="color:blue;">âÂÂ</span> (R)<br /> <span style="color:orange;">âÂÂ</span> (LE)<br /> <span style="color:crimson;">âÂÂ</span> (RL)<br /> <span style="color:red;">âÂÂ</span> (MU)
All trains stop at stations marked "âÂÂ" and pass stations marked "|". Some trains stop at "â²".
The Nagoya Electric Railway (later Meitetsu) opened the Biwajima to Iwakura section, as an interurban electrified at 600 V DC, in 1910. The line was extended to Inuyama in 1912 built with double tracks. In 1922, the Biwajima to Iwakura section was double-tracked, and in 1926, the line was extended as dual track to Shin-Unuma, including a combined rail and road bridge over the river Kiso.
In 1948, the voltage was increased to 1,500 V DC, and in 1993 through services commenced on the Nagoya Municipal Subway Tsurumai Line. The road utilising the Kisogawa rail bridge was diverted onto its own bridge in 2000, ending the last such combined bridge usage in Japan.