Within the framework of the strong-?eld approximation theory, using the quantum S-matrix theory and the saddle pointmethod, we investigated the resonance-like enhancement structures in the high-order above-threshold ionization photoionizationelectron energy spectrum of He atoms, when the ?nal momentum of photoelectrons was aligned along the direction of the stronglaser ?eld and at an angle to the ?eld direction.The research results indicate that the resonance-like enhancement structures appeared regardless of whether the ?nal momentumof photoelectrons was aligned along the polarization direction of the ?eld or at an angle to it, and the intensities of theenhancement peaks also satis?ed the channel closing conditions, further con?rming the channel closing mechanism of resonancelike enhancement. At the same time, it was found that with the increase in laser intensity, the resonance-like enhancement andsuppression phenomena alternated in the photoelectron energy spectrum. When the laser intensity was constant, the resonance-likeenhancement structures gradually shifted towards the low-energy direction as the emission angle of photoelectrons increased. Thesephenomena may be caused by the interference of quantum orbitals with different return times.