A multi-directional bar code scanning device having multiple laser emitters matched with a single photosensitive receiver, comprising: a housing, with a recess formed on a middle of the housing, a light source groove and a light projection reflector support being provided at a side of the housing, and a light collection rectangular aperture formed on a bottom of the recess; N laser emitters, fixed in the light source groove via an installation component and adapted for emitting N laser beams and projecting the N laser beams at a certain projected path, therein N is an integer and N≥2; N light projection reflectors, located above the light source groove and mounted on the light projection reflector support to match with the N laser emitters correspondingly; a light collection reflector, located at a front of the N light projection reflectors, with N light projection apertures being formed on a middle of the light collection reflector to match with the N light projection reflectors correspondingly; a rotatable reflector group, configured in the recess and located opposite to the N light projection reflectors; a tilted reflector group, including a plurality of reflectors at different angles which are configured at a ring surface of the recess; and a photosensitive receiver, located beneath the light collection rectangular apertures and opposite to the light collection reflectors; wherein the N laser beams emitted from the N laser emitters are emitted to the N light projection reflectors correspondingly, pass through the N light projection apertures on the light collection reflector, then are reflected by the rotatable reflector group and the tilted reflector group in turn to form N baseline laser scanning beams to project on a target bar code; after scattered by the target bar code, the N baseline laser scanning beams are reflected reversely to the light collection reflectors and focused to the photosensitive receiver which is arranged for converting an optical signal to an electrical signal; the laser beams emitted from the N laser emitters are focused and aligned by the lens and then spread at different positions from far to near, so that the N laser emitters handle depth of field in different ranges from far to near respectively; characterized in that the rotatable reflector group comprises a motor and four reflectors located at a side of the motor, angles formed between each reflector and a horizontal plane of the housing are arranged in an arithmetic progression, and the four reflectors are rotatable at a certain frequency under control of the motor; and the tilted reflector group is composed of six oblique trapezoidal reflectors with an obtuse angle formed between two adjacent reflectors, and a multi-directional scanning beam pattern composing of six sets of parallel rays is formed. a housing, with a recess formed on a middle of the housing, a light source groove and a light projection reflector support being provided at a side of the housing, and a light collection rectangular aperture formed on a bottom of the recess; N laser emitters, fixed in the light source groove via an installation component and adapted for emitting N laser beams and projecting the N laser beams at a certain projected path, therein N is an integer and N≥2; N light projection reflectors, located above the light source groove and mounted on the light projection reflector support to match with the N laser emitters correspondingly; a light collection reflector, located at a front of the N light projection reflectors, with N light projection apertures being formed on a middle of the light collection reflector to match with the N light projection reflectors correspondingly; a rotatable reflector group, configured in the recess and located opposite to the N light projection reflectors; a tilted reflector group, including a plurality of reflectors at different angles which are configured at a ring surface of the recess; and a photosensitive receiver, located beneath the light collection rectangular apertures and opposite to the light collection reflectors; wherein the N laser beams emitted from the N laser emitters are emitted to the N light projection reflectors correspondingly, pass through the N light projection apertures on the light collection reflector, then are reflected by the rotatable reflector group and the tilted reflector group in turn to form N baseline laser scanning beams to project on a target bar code; after scattered by the target bar code, the N baseline laser scanning beams are reflected reversely to the light collection reflectors and focused to the photosensitive receiver which is arranged for converting an optical signal to an electrical signal; the laser beams emitted from the N laser emitters are focused and aligned by the lens and then spread at different positions from far to near, so that the N laser emitters handle depth of field in different ranges from far to near respectively; characterized in that the rotatable reflector group comprises a motor and four reflectors located at a side of the motor, angles formed between each reflector and a horizontal plane of the housing are arranged in an arithmetic progression, and the four reflectors are rotatable at a certain frequency under control of the motor; and the tilted reflector group is composed of six oblique trapezoidal reflectors with an obtuse angle formed between two adjacent reflectors, and a multi-directional scanning beam pattern composing of six sets of parallel rays is formed.