The present invention relates to the formulas of a kind of ether amines (I) based on glycerol or trimethylolpropane and its manufacturing method, whereinR=H, ethyl, k is that 0 or 1A indicates the linear or branched alkylene group with C2-C18 carbon atom, can be mutually the same or different, at least one represents linear or branching C4-alkylene groups, in the range of the sum of x, y and z lies 3 to 100, x ≥1, y ≥1 z ≥1, Z=NH2 or OH, but at least two Z of per molecule is NH2.