Single-phase voltage boosting box used by residential users

The invention discloses a single-phase voltage boosting box used by residential users. A single-pole double-throw voltage stepping switch D (1), a single-pole double-throw hurl-slices switch K (2), a single-pole single-throw capacitance stepping switch S (3) and a junction box (4) are arranged on a supporting partition plate (12) in the box inside a box body (10) of the single-phase voltage boosting box, and the junction box (4) is provided with a live line incoming joint L1, a live line outgoing joint L2 and a zero line joint N in sequence from left to right; the box body (10) is internally provided with a series transformer T (9) and a capacitance compensating device C (8), two groups of coils are arranged on the secondary side of the series transformer T (9), and the capacitance compensating device C (8) comprises three groups of capacitors C1, C2, C3. The single-phase voltage boosting box is simple in structure, convenient to operate, adjustable in voltage and reactive compensation, good in effect, low in