The P'yà Ângyanghwajà Ân Line, or P'yà Ângyang Thermal Power Plant Line, is an electrified freight-only railway line of the Korean State Railway in Pot'onggang-guyà Âk and P'yà Ângch'à Ân-guyà Âk, P'yà Ângyang, North Korea, running from Pot'onggang on the P'yà Ângnam Line to P'yà Ângch'à Ân, with a branch to the P'yà Ângyang Thermal Power Plant (P'yà Ângyanghwajà Ân), from which the line gets its name).
The original line between Pot'onggang Station to P'yà Ângch'à Ân via the P'yà Ângyang Marshalling Yard was opened by the Chosen Government Railway on 21 March 1944. This was extended by the Korean State Railway in 1961, when construction of the P'yà Ângyang Thermal Power Plant began. The line was given its current name at that time.
The line serves a number of industries, notably the Taedonggang Battery Factory, the 26 March Electric Wire Factory, and the P'yà Ângyang Thermal Power Plant in Saemaà Âl-dong, P'yà Ângch'à Ân-guyà Âk, the Pot'onggang Organic Fertiliser Factory in Chà Ângpy'à Âng-dong, P'yà Ângch'à Ân-guyà Âk, adjacent to the marshalling yard, and the Posok Korean Foreign Trade Company.
A yellow background in the "Distance" box indicates that section of the line is not electrified.