A vehicular lamp comprising: a lamp housing; a base substrate disposed in the lamp housing; and a plurality of planar light sources disposed spaced apart from each other on the base substrate, wherein each of the plurality of planar light sources has a light emitting surface that protrudes from the base substrate and that forms a respective acute angle with the base substrate relative to a forward direction of the vehicular lamp, wherein the plurality of planar light sources are sequentially arranged along a direction from a forward end of the lamp housing to a rear end of the lamp housing, and areas of light emitting surfaces of the plurality of planar light sources are arranged to monotonically increase in the direction from the forward end of the lamp housing to the rear end of the lamp housing, characterized in that the vehicular lamp further comprises a drive unit configured to rotate and move the plurality of planar light sources; and a control unit configured to control the drive unit to vary an angle between the base substrate and at least one light emitting surface of the plurality of planar light sources according to a predetermined condition, wherein the control unit is further configured to: based on a first collision likelihood with an object detected in a predetermined range, control the drive unit to arrange the base substrate and each light emitting surface of the plurality of planar light sources to form a first angle within a first angle range; and based on a second collision likelihood with the detected object, where the second collision likelihood is greater than the first collision likelihood, control the drive unit to arrange the base substrate and each light emitting surface of the plurality of planar light sources to form a second angle within a second angle range. a lamp housing; a base substrate disposed in the lamp housing; and a plurality of planar light sources disposed spaced apart from each other on the base substrate, wherein each of the plurality of planar light sources has a light emitting surface that protrudes from the base substrate and that forms a respective acute angle with the base substrate relative to a forward direction of the vehicular lamp, wherein the plurality of planar light sources are sequentially arranged along a direction from a forward end of the lamp housing to a rear end of the lamp housing, and areas of light emitting surfaces of the plurality of planar light sources are arranged to monotonically increase in the direction from the forward end of the lamp housing to the rear end of the lamp housing, characterized in that the vehicular lamp further comprises a drive unit configured to rotate and move the plurality of planar light sources; and a control unit configured to control the drive unit to vary an angle between the base substrate and at least one light emitting surface of the plurality of planar light sources according to a predetermined condition, wherein the control unit is further configured to: based on a first collision likelihood with an object detected in a predetermined range, control the drive unit to arrange the base substrate and each light emitting surface of the plurality of planar light sources to form a first angle within a first angle range; and based on a second collision likelihood with the detected object, where the second collision likelihood is greater than the first collision likelihood, control the drive unit to arrange the base substrate and each light emitting surface of the plurality of planar light sources to form a second angle within a second angle range. based on a first collision likelihood with an object detected in a predetermined range, control the drive unit to arrange the base substrate and each light emitting surface of the plurality of planar light sources to form a first angle within a first angle range; and based on a second collision likelihood with the detected object, where the second collision likelihood is greater than the first collision likelihood, control the drive unit to arrange the base substrate and each light emitting surface of the plurality of planar light sources to form a second angle within a second angle range.