Ambrosio, Honda, and Tewodrose proved that the regular Weyl’s law is equivalent to a mild condition related to the infinitesimal behavior of the measure of balls in compact finite dimensional
R
C
D
\mathsf {RCD}
spaces. Though that condition is seemed to always hold for any such spaces, however, Dai, Honda, Pan, and Wei recently showed that for any integer
n
n
at least 2, there exists a compact
R
C
D
\mathsf {RCD}
space of
n
n
dimension fails to satisfy the regular Weyl’s law. In this short article we prove that one dimensional
R
C
D
\mathsf {RCD}
spaces always satisfy the regular Weyl’s law.