Abstract: Quantum sensing utilizes the quantum state of microscopic particles as the detection carrier, and can realize ultra-high precision sensing by measuring the perturbation of external physical quantities to the quantum state. As the core driving force of the Second Quantum Revolution, quantum sensing is moving from the laboratory to the industry. With the breakthrough of key technologies such as micro-nano heterogeneous integration, quantum sensing is expected to greatly improve the measurement accuracy order of magnitude in navigation, medical care, energy and other fields, thus becoming a strategic high point for future research. As an important component of photonic integrated circuits, microring resonators have shown revolutionary potential in the field of quantum sensing in recent years thanks to their strong nonlinear effect, CMOS (complementary metal-oxide-semiconductor) compatibility, and ultra-high integration. The core of the performance of microring resonators lies in their high quality factor and tunable free spectral range. The former implies a longer photon lifetime in the resonator, which can show more obvious quantum effects, while the latter enables multi-parameter parallel sensing and thus the simultaneous detection of multi-channel quantum states. This paper introduces the microring resonators, as well as their recent progress toward quantum sensing applications, and provides an outlook on the technical challenges and development directions for the future.