The invention relates to a serial-type stationary dynamic reactive booster. The serial-type stationary dynamic reactive booster comprises an iron core in the shape of a Chinese character "ri", two groups of coils, and a control part. Magnetic conductive iron cores are arranged around the iron core, the middle part of the iron core is an equivalent trapezoid iron core, and the equivalent trapezoid iron core is formed by two symmetrically-fixed isosceles trapezoid iron cores. The two groups of coils are wound on the middle part of the iron core, including a primary coil L1 and a secondary coil L2, and the primary coil L1 and the secondary coil L2 are connected in an end-to-end manner. The serial-type stationary dynamic reactive booster has the advantages that non-contact (coupling type) capacitive current injection and a non-contact (coupling type) boosting function are realized, and the functions such as active and passive dual-driving boosting intelligent switching, serial-parallel compensation function intelligent switching and self-coupling soft starting are realized.