A process for preparing amino-functional organopolysiloxanes comprising(i) mixing aminosilanes of the general formula RaQbSi(OR1)4−(a+b), where R and R1 are hydrogen or optionally substituted hydrocarbyl,a is 0, 1 or 2, b is 1, 2 or 3, and a+b is ≦3,Q is —R5—[NR6(CH2)n]eN(R6)2,where R5 is a hydrocarbyl diradical and R6 is hydrogen, hydrocarbyl, or acyl,e is 0, 1, 2, 3 or 4, n is 2, 3, 4, 5 or 6,with organosilicon compounds selected from siloxanes comprising units R d ⁡ ( O ⁢ R 1 ) f ⁢ SiO 4 - ( d + f ) 2 ⁢ ⁢ and ⁢ ⁢ R c ⁢ SiO 4 - c 2 or silanes RcSi(OR1)4−c,where c is 0, 1, 2 or 3, d is 0, 1 or 2, f is 1, 2 or 3,with the proviso that d+f is ≦3,basic catalysts selected from alkali metal hydroxides, alcoholates and siloxanolates,and optionally, alcohols H—[O(CHR2)p]mOR3,where R2 and R3 are hydrogen or hydrocarbyl,p is 2, 3 or 4, and m is 0 or an integer from 1 to 100,(ii) reacting by heating to 70–100° C., and(iii) subsequently, neutralizing the basic catalysts by addition of neutralizing agents which form salts which are soluble in the amino-functional organopolysiloxanes thus obtained.