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In this paper, we extend Joule-Thomson expansion to the low-dimensionalregime in rainbow gravity by considering the rainbow rotating BTZ metric in the(2+1)-dimensional spacetime. After the metric of the black hole is obtained, weget the Joule-Thomson expansion of the black hole, including the Joule-Thomsoncoefficient, inversion curves, and isenthalpic curves. We find that a rainbowrotating BTZ black hole does not have $P-V$ critical behavior. The effects ofrainbow gravity are to slow down the trend of the increase of the Joule-Thomsoncoefficient and make its zero point larger. Moreover, the rainbow gravity slowsdown the inverse temperature of the black hole, meaning that a rainbow rotatingBTZ black hole tends to change its heating or cooling action at a lowertemperature, which can be attributed to the topology of the black hole.

Joule-Thomson expansion of the lower-dimensional black hole in rainbow gravity