The analysis of 40-year mean daily data shows that marked differences lie in vertical structure and movement of subtropical high ridge (STH) between 120～150°E and 160°E～180°, which are closly related to nonuniform heating.The ridge line slopes northward with hight while southward in 160°E～180°.The ridge movement has 10～20-day low-frequency oscillation during its northward over central and western Pacific,particularly in East-Asian monsoon area with quasi-40-day oscillation period.The analysis shows that solar radiation is the main factor of STH movement and that nonuniform heating plays a very important role in its moving speed and change of strength,especially for its abnormality.