A polyamide resin, which is composed of a structural unit derived from diamine and a structural unit derived from dicarboxylic acid; 70 mol% or more of the structural unit derived from diamine being derived from 1,4-bis(aminomethyl)cyclohexane, 1,4-bis(aminomethyl)cyclohexane having a molar ratio cis:trans of 10:90 to 0:100, 70 mol% or more of the structural unit derived from dicarboxylic acid being derived from a straight chain aliphatic α,ω-dicarboxylic acid having 8 to 12 carbon atoms, the polyamide resin containing 20 to 100 ppm by mass of phosphorus atom, and containing calcium atom so that the molar ratio given by phosphorus atom:calcium atom will be 1:0.3 to 0.7, wherein the straight chain aliphatic α,ω-dicarboxylic acid having 8 to 12 carbon atoms is sebacic acid, and the polyamide resin has a melting point of 280°C or higher, and wherein the phosphorus atom concentration and the calcium atom concentration in the polyamide resin are measured by mixing 0.2 g of polyamide resin and 8 mL of a 35% by mass aqueous nitric acid solution, and subjecting the mixture to microwave digestion at 230°C for 30 minutes; diluting the obtained digestate with ultrapure water up to a predetermined volume, to be used as a sample liquid for ICP analysis; and using an ICP analyzer, and the melting point is determined by conducting differential scanning calorimetry in accordance with JIS K 7121 and K 7122 in which using a differential scanning calorimeter, the polyamide resin pellets obtained are crushed, placed in a pan of the differential scanning calorimeter, heated in a nitrogen gas atmosphere up to 300°C at a heating rate of 10°C/min, then slowly cooled down to 30°C at 10°C/min for pretreatment, followed by measurement; measurement conditions include a heating rate of 10°C/min, holding at 300°C for 5 minutes, and a cooling rate of -5°C/min down to 100°C. 70 mol% or more of the structural unit derived from diamine being derived from 1,4-bis(aminomethyl)cyclohexane, 1,4-bis(aminomethyl)cyclohexane having a molar ratio cis:trans of 10:90 to 0:100, 70 mol% or more of the structural unit derived from dicarboxylic acid being derived from a straight chain aliphatic α,ω-dicarboxylic acid having 8 to 12 carbon atoms, the polyamide resin containing 20 to 100 ppm by mass of phosphorus atom, and containing calcium atom so that the molar ratio given by phosphorus atom:calcium atom will be 1:0.3 to 0.7, wherein the straight chain aliphatic α,ω-dicarboxylic acid having 8 to 12 carbon atoms is sebacic acid, and the polyamide resin has a melting point of 280°C or higher, and wherein the phosphorus atom concentration and the calcium atom concentration in the polyamide resin are measured by mixing 0.2 g of polyamide resin and 8 mL of a 35% by mass aqueous nitric acid solution, and subjecting the mixture to microwave digestion at 230°C for 30 minutes; diluting the obtained digestate with ultrapure water up to a predetermined volume, to be used as a sample liquid for ICP analysis; and using an ICP analyzer, and the melting point is determined by conducting differential scanning calorimetry in accordance with JIS K 7121 and K 7122 in which using a differential scanning calorimeter, the polyamide resin pellets obtained are crushed, placed in a pan of the differential scanning calorimeter, heated in a nitrogen gas atmosphere up to 300°C at a heating rate of 10°C/min, then slowly cooled down to 30°C at 10°C/min for pretreatment, followed by measurement; measurement conditions include a heating rate of 10°C/min, holding at 300°C for 5 minutes, and a cooling rate of -5°C/min down to 100°C.