A polyamide composition for an LED reflection plate, comprising: a polyamide; a titanium oxide; a magnesium oxide; a phenolic antioxidant; and a phosphorus-containing antioxidant; wherein the polyamide is a polyamide having a dicarboxylic acid unit comprising 50% by mol or more of 1,4-cyclohexanedicarboxylic acid unit and a diamine unit and having a melting point of 280°C or higher, wherein the melting point is measured by determining the peak temperature of the melting peak emerging when the temperature is raised under a nitrogen atmosphere from 30°C to 360°C at a rate of 10°C/min by using a differential scanning calorimetric analyzer; the phenolic antioxidant does not have 4 or more phenol structures in one molecule thereof and the phosphorus-containing antioxidant has 3 or more structures represented by the following formula in one molecule thereof, wherein the content of the titanium oxide is 10 to 100 parts by mass, the content of the magnesium oxide is 0.50 to 15.0 parts by mass, and the content of the phenolic antioxidant is 0.10 to 0.80 part by mass, with respect to 100 parts by mass of the polyamide; the content of the phosphorus-containing antioxidant satisfies the following expression: 0.25 ≤ mass ratio D component / E component ≤ 3.0 wherein R 11 to R 13 are each independently an alkyl group having 1 or 2 carbon atoms; and R 14 to R 17 are each independently a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; and * represents a bonding site with a phosphorus atom; wherein the diamine unit of the polyamide comprises 50% by mol or more of an aliphatic diamine unit having 4 to 18 carbon atoms, wherein the aliphatic diamine unit is at least one selected from the group consisting of a 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit; and wherein the content of the polyamide is 30% by mass or higher and 80% by mass or lower. a polyamide; a titanium oxide; a magnesium oxide; a phenolic antioxidant; and a phosphorus-containing antioxidant; wherein the polyamide is a polyamide having a dicarboxylic acid unit comprising 50% by mol or more of 1,4-cyclohexanedicarboxylic acid unit and a diamine unit and having a melting point of 280°C or higher, wherein the melting point is measured by determining the peak temperature of the melting peak emerging when the temperature is raised under a nitrogen atmosphere from 30°C to 360°C at a rate of 10°C/min by using a differential scanning calorimetric analyzer; the phenolic antioxidant does not have 4 or more phenol structures in one molecule thereof and the phosphorus-containing antioxidant has 3 or more structures represented by the following formula in one molecule thereof, wherein the content of the titanium oxide is 10 to 100 parts by mass, the content of the magnesium oxide is 0.50 to 15.0 parts by mass, and the content of the phenolic antioxidant is 0.10 to 0.80 part by mass, with respect to 100 parts by mass of the polyamide; the content of the phosphorus-containing antioxidant satisfies the following expression: 0.25 ≤ mass ratio D component / E component ≤ 3.0 wherein the diamine unit of the polyamide comprises 50% by mol or more of an aliphatic diamine unit having 4 to 18 carbon atoms, wherein the aliphatic diamine unit is at least one selected from the group consisting of a 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit; and wherein the content of the polyamide is 30% by mass or higher and 80% by mass or lower.