Abstract: Organosilicon compounds containing amino groups, their preparation and their useOrganosilicon compounds containing amino groups and comprisinga) siloxane units of the formulaR.sub.a Si(OR.sup.1).sub.b O.sub.(4-a-b)/2 (I)andb) at least one unit per molecule selected from the group consisting of units of the formulaeAR.sub.C SiO.sub.(4-c-1)/2 (II),O.sub.(4-c-1)/2 R.sub.C Si--A.sup.1 --R.sub.C SiO.sub.(4-c-1)/2 (III)or ##STR1## where R is an identical or different hydrocarbon radical which has from 1 to 18 carbon atoms, optionally substituted by halogen atoms, alkoxy groups or hydroxy groups where the hydrocarbon radical is optionally interrupted by oxygen atoms,R.sup.1 is an identical or different alkyl radical which is optionally interrupted by oxygen atoms,a is 0, 1, 2 or 3 andb is 0, 1, 2 or 3, with the proviso that the sum a+b is not greater than 3, andc is 0, 1 or 2,A is a radical of the formula--R.sup.2 R.sup.3.sub.z N(--CR.sup.4.sub.2 --R.sup.5).sub.(2-z) (V),A.sup.