We present the results of ALMA-ACA 7 m array observations in ^12 CO( J = 2–1), ^13 CO( J = 2–1), and C ^18 O( J = 2–1) line emission toward the molecular-gas disk in the Local Group spiral galaxy M33 at an angular resolution of 7.″31 × 6.″50 (30 × 26 pc). We combined the ACA 7 m array ^12 CO( J = 2–1) data with the IRAM 30 m data to compensate for emission from diffuse molecular-gas components. The ACA+IRAM combined ^12 CO( J = 2–1) map clearly depicts the cloud-scale molecular-gas structure over the M33 disk. Based on the ACA+IRAM ^12 CO( J = 2–1) cube data, we cataloged 848 molecular clouds with a mass range from 10 ^3 –10 ^6 M _⊙ . We found that high-mass clouds (≥10 ^5 M _⊙ ) tend to associate with the 8 μ m bright sources in the spiral arm region, while low-mass clouds (