Molybdenum disulfide (MoS ₂), as a layered transition metal chalcogenide, plays an important role in fields of photonics and photoelectronics. Here, a coupled system consisting of monlayer MoS ₂and nano-resonator is designed and implemented. The photoluminescence (PL) spectrum of the MoS ₂is coupled with the resonant mode of plasmonic bowtie resonator, thus achieving an optimal PL enhancement condition. Based on the analysis of theoretical model and experimental data, the spontaneous emission rate can be controlled by the Purcell effect, and the broadband enhanced spectrum is obtained in which its peak value increases 9.5 times and bandwidth is 100 nm . Meanwhile, the enhanced PL intensity also satisfies the cosine function relation between the polarization angle of the exciting light and that of the detecting light, which proves that the resonance mode comes from the electric field dipole in the resonator. This study provides the feasibility of studying the enhancement of light-matter interaction in an MoS ₂-plasmonic resonator coupled structure, which opens up a new route to improving the emission and detection efficiency of MoS ₂-based photonic devices in future.