The anisotropy of the directional distribution of neutron-capture gamma rays from aligned 149Sm nuclei was measured. The 149Sm nuclei were aligned in single crystals of Ce(Sm)Mg double nitrate which were cooled to about 0.01° K by adiabatic demagnetization. The following spin and parity assignments for levels of 150Sm were obtained by combining the anisotropy measurements with available electron conversion data: J π (1046.4) = 2 +, J π (1071.4) = 3 −, J π (1165.6) = 1 −, J π (1193.8) = 2 +, J π (1357.7) = 3 −, 5 −, J π (1449.3) = 4 +, J π (1504.7) = 3 +, J π (1642.7) = 4 +, J π (1684.2) = 3 −, 4 −, J π (1822) = 4 +, J π (1843.6) = (2 +, 4 +), J π (1951) = 3 −, 5 −, (4 −), J(1971.9) = 4, J π (2021.5) = 4 +, J π (2062.9) = 3 +, (5 +), J π (2094) = 5 +, J π (2120) = 3 −, 5 −, J π (2153.3) = 4 +, J π (2191.2) = 4 +, J(2260) = 4, J π (2368) = 3 +, 5 +, J π (2453) = 3 +, J π (2493) = 3 +, 5 + and J π (2647) = 3 (+), 5 (+) . These results were combined with existing data to construct an extended level scheme of 150Sm. The energy level scheme of 150Sm is compared to the level schemes of neighbouring samarium nuclei and of 152Gd.