The invention discloses a comprehensive high-coverage-rate furniture paint spraying device. A rectangular base is included; a moving device is arranged above the rectangular base, and is composed of arectangular rack, a first driving wheel, a second driving wheel, a first rotating motor, a second rotating motor, a rectangular bearing frame, a first fixed ring, a second fixed ring, a horizontal
load bearing plate, a first hoisting ring, a second hoisting ring, a first annular groove, a second rectangular groove, a first telescopic motor, a second telescopic motor and a paint spraying device body jointly; the paint spraying device body is composed of a paint spraying chamber, a first rectangular opening, a first electronic roller
shutter door, a second rectangular opening, a second electronic roller
shutter door, a paint storage chamber, a sucking pump, a rectangular slide groove, a first rack, a first installing box, a third rotating motor, a first gear, an electronic telescopic
pipe,a paint spraying head and a connection
pipe; and a controller is arranged on one side of the paint spraying chamber, and is electrically connected with the sucking pump, the electronic telescopic
pipe, the third rotating motor, the second rotating motor, the first rotating motor, the second electronic roller
shutter door, the first electronic roller shutter door, the first telescopic motor and thesecond telescopic motor. The comprehensive high-coverage-rate furniture paint spraying device has the beneficial effects of being simple in structure and high in practicability.