A bicycle reflection cup based on surface patches, comprising: six upper surface patches, six lower surface patches, and a LED light and a light base that are fixed on a side of a light emitting surface of the six surface patches; the six upper surface patches are divided into three pairs that are symmetrically arranged on both sides of an axis; the six lower surface patches are divided into three pairs that are symmetrically arranged on both sides of the axis; the six upper surface patches are arranged in a sequence from the middle to both sides: upper-inner symmetric surface patches (1-2), upper-middle symmetric surface patches (1-4), upper-outer symmetric surface patches (1-1); and the six lower surface patches are arranged in a sequence from the middle to both sides: lower inner symmetric surface patches (1-3), lower middle symmetric surface patches (2-2), and lower outer symmetric surface patches (2-1), characterized in that : the upper-inner symmetric surface patches (1-2), the upper-middle symmetric surface patches (1-4), the upper-outer symmetric surface patches (1-1) and the lower-inner symmetric surface patches (1-3) form a surface patch array that superimposes lights to a long strip zone of a setting zone; the lower-outer symmetric surface patches (2-1) and the lower-middle symmetric surface patches (2-2) form a surface patch array that superimposes and fills lights to a transverse strip zone at a distal end of the setting zone; light emitting areas of the surface patch array for superimposing lights to the long strip zone of the setting zone and the surface patch array for superimposing and filling lights to the transverse strip zone at the distal end of the setting zone are determined according to requirements of a light intensity distribution in the distal end and proximal end of the setting zone; the LED light is arranged obliquely towards the light emitting surface of the six upper surface patches; the setting zone is a rectangular light band three-dimensional space with a set length, a set width and a set height, the set height is set to be below a cut-off line; a height of the cut-off line is set as a height of a certain part of a human body according to a humanization standard; the long strip zone includes all zones from the proximal end to the transverse strip zone at the distal end with a height under the cut-off line and with excluding the transverse strip zone at the distal end of the setting zone. the upper-inner symmetric surface patches (1-2), the upper-middle symmetric surface patches (1-4), the upper-outer symmetric surface patches (1-1) and the lower-inner symmetric surface patches (1-3) form a surface patch array that superimposes lights to a long strip zone of a setting zone; the lower-outer symmetric surface patches (2-1) and the lower-middle symmetric surface patches (2-2) form a surface patch array that superimposes and fills lights to a transverse strip zone at a distal end of the setting zone; light emitting areas of the surface patch array for superimposing lights to the long strip zone of the setting zone and the surface patch array for superimposing and filling lights to the transverse strip zone at the distal end of the setting zone are determined according to requirements of a light intensity distribution in the distal end and proximal end of the setting zone; the LED light is arranged obliquely towards the light emitting surface of the six upper surface patches; the setting zone is a rectangular light band three-dimensional space with a set length, a set width and a set height, the set height is set to be below a cut-off line; a height of the cut-off line is set as a height of a certain part of a human body according to a humanization standard; the long strip zone includes all zones from the proximal end to the transverse strip zone at the distal end with a height under the cut-off line and with excluding the transverse strip zone at the distal end of the setting zone. <EOS>