The construction of microgel-based composite hydrogels is an effective method to accelerate the response speed of hydrogels. To improve the chemical-mechanical oscillation (C-M) delay in the self-oscillating gel system, this paper innovatively constructed a microgel composite self-oscillating hydrogel using the microgel bearing double bonds on the surface as crosslinker. First, the microgel bearing unsaturated double bonds with good dispersity was fabricated via the emulsion polymerization method. Then microgel composite self-oscillating hydrogels were prepared by using the microgel as crosslinker. The effect of the microgel as crosslinker for self-oscillating hydrogels on the C-M delay was explored. The results show that the mesh structure of the microgel composite self-oscillating hydrogels is loose and spherical, which is beneficial to increase its diffusion coefficient; through microscope monitoring, under multiple crosslinking densities, no C-M delay is found, and the oscillation behavior (period and amplitude) can remain stable.