A planetary transmission for a hybrid drive of a motor vehicle, featuring three coupled planetary gear sets (RS1, RS2, RS3), characterized in that, with a first planetary gear set (RS1), one of the two elements of ring gear (HR1) or planetary carrier (PT1) is connectable to a fixed-housing component (GH) and is connectable or connectable in drive terms to a rotor (RO) of the electric motor (EM), that the other of the two elements of ring gear (HR1) or planetary carrier (PT1) of the first planetary gear set (RS1) is connected to one of the two elements of ring gear (HR3) or planetary carrier (PT3) of a third planetary gear set (RS3), that the sun gear (SR1) of the first planetary gear set (RS1) is connected to a transmission input shaft (GE) and is connectable to one of the two elements of ring gear (HR3) or planetary carrier (PT3) of the third planetary gear set (RS3), and two of the elements of ring gear (HR1), planetary carrier (PT1), sun gear (SR1) of the first planetary gear set (RS1) are connectable to each other, that, with a second planetary gear set (RS2), one of the two elements of ring gear (HR2) or planetary carrier (PT2) is connected or connected in drive terms to one of the two elements of ring gear (HR3) or planetary carrier (PT3) of the third planetary gear set (RS3), that the other of the two elements of ring gear (HR2) or planetary carrier (PT2) of the second planetary gear set (RS2) is connected in drive terms to a transmission output (GA), that the sun gear (SR2) of the second planetary gear set (RS2) is connected to the rotor (RO) of the electric motor (EM), that two of the elements of ring gear (HR2), planetary carrier (PT2), sun gear (SR2) of the second planetary gear set (RS2) are connectable to each other, and that, with the third planetary gear set (RS3), its sun gear (SR3) is connected or connectable to the fixed-housing component (GH).