The invention relates to a micro-hot plate and a manufacturing method of the micro-hot plate. An adhesion layer is arranged on the surface of a quartz glass substrate. An electrode layer is arranged on one surface of the adhesion layer away from quartz glass. One surface of the quartz glass substrate away from the adhesion layer is provided with a groove. Due to the low thermal conductivity of thequartz glass substrate, the thermal conduction capability between the quartz glass substrate and the environment is poor, so that the power consumption of the micro-hot plate can be reduced, and theenergy utilization efficiency can be improved. At the same time, the quartz glass substrate has the characteristics of insulation and high temperature resistance, so an insulating material can be omitted on the surface of the quartz glass substrate, thereby simplifying the "sandwich" film structure and improving the thermal stability. At the same time, the groove can reduce the heat capacity of the quartz glass substrate and reduce the power consumption. At the same time, the groove has a bottom, therefore, the groove can support the adhesion layer and the electrode layer, thereby enhancing the structural strength, and preventing the adhesion layer and the electrode layer from being damaged due to movement or vibration and other situations because of suspension.