<p>Based on the analytical soliton solutions, we explore the spin dynamics within spin-orbit coupled spin-1 Bose-Einstein condensates. Our investigation reveals two distinct modes of soliton oscillation triggered by spin-orbit coupling. The first mode features a soliton moving against a periodic background, while the second displays a soliton with periodic modulation against a steady background. Remarkably, both the periodic background and the periodic modulation of the soliton are driven directly by the spin-orbit coupling. Additionally, we provide a comprehensive analysis of the effective mass for these oscillatory solitons. Our findings also include the generation of oscillatory magnetic solitons and the modification of spin domain walls through spin-orbit coupling. Furthermore, we demonstrate that spin-orbit coupling can influence the regions of modulation instability, and the stability of these solutions against small perturbations has been confirmed through numerical simulations.</p>