A polyamide elastomer obtained by reacting at least the following components (a), (b) and (c), wherein the component (a) has a number average molecular weight of from 4,000 to 10,000. Component (a) At least one compound represented by the following general formula (1): wherein R 1 is each independently a linear saturated hydrocarbon group having 1 or more carbon atoms, n Represents a real number of 0 or more, and when two or more repeating units including R1 are included, the total for each repeating unit including R1 is n.) (B) Component represented by the following general formula (2) At least one compound (wherein R2 represents a direct bond or a straight-chain saturated hydrocarbon group having 1 or more carbon atoms) (c) component at least represented by the following general formula (3) One compound ## STR3 ## wherein R4 each independently represents a saturated hydrocarbon group having 1 or more carbon atoms, m represents a real number of 1 or more, and two repeating units containing R4 If it is included above, m is the sum of each repeating unit including R4.)少なくとも下記(a)、(b)及び(c)成分を反応させて得られるポリアミドエラストマーであって、(a)成分の数平均分子量が4000以上10000以下であるポリアミドエラストマー。 (a)成分 下記一般式(1)で表される少なくとも1種の化合物 【化1】(式中、R1は、各々独立して炭素数1以上の直鎖状飽和炭化水素基であり、nは0以上の実数を示す。また、R1を含む繰り返し単位が2種以上含まれる場合、R1を含む繰り返し単位毎の総和をnとする。) (b)成分 下記一般式(2)で表される少なくとも1種の化合物 【化2】(式中、R2は、直結又は炭素数1以上の直鎖状飽和炭化水素基を示す。) (c)成分 下記一般式(3)で表される少なくとも1種の化合物 【化3】(式中、R4は、各々独立して炭素数1以上の飽和炭化水素基を示す。mは1以上の実数を示す。また、R4を含む繰り返し単位が2種以上含まれる場合、R4を含む繰り返し単位毎の総和をmとする。)