High-spin states of 136La have been investigated with the reaction 130Te( 11B, 5n) at a beam energy of 60 MeV. The level scheme with three collective bands has been updated with spin up to 20 ℏ. The observed πh11/2 ⊗ νh11/2 band shows γ-instability with increasing spin according to the TRS calculations. The band crossing and the signature splitting and inversion have been discussed. Other two collective bands based on 12-and 16+ levels were proposed as oblate deformation with γ ∼ -60°. They most probably originate from four- and six-quasiparticle configurations, that is, πh11/2 ⊗ νg7/2h11/22 and πg7/2 ⊗ νg7/22d5/2h11/22 respectively.