The invention discloses a tea enzyme-deactivating and baking streamline system utilizing microwave to heat and dry. The system is composed of a material feeding hopper, a material feeding mouth, a gas outlet pipe, a microwave chamber, a microwave magnetron generator, an aspiration channel, an exhaust inlet, an attenuation chamber, a conveyor belt, a transmission auxiliary shaft, a finished-product vehicle, a control cabinet, an outer control disc, a transmission platform, a support, an enzyme-deactivating and baking cavity, a material feeding attenuation chamber, a motor, an electric chamber, a decelerator, a driving belt, a transmission main shaft, and a device machine body. The system fully utilizes the penetrating performance and non-thermal effect of microwave to rapidly heat the tea to a required temperature for enzyme-deactivating and drying to destroy the activity of the enzyme in fresh tea leaves to inhibit the enzymatic reactions; the microwave makes the inner molecules in tea to collide with each other in a high speed, thus a great amount of friction heat is generated, the temperature of the tea is rapidly increased, the surface and inner of the tea are simultaneously heated in a short time, thus a great amount of water molecules are rapidly evaporated from the tea, and the effects of rapid enzyme-deactivating, drying, sterilizing, and improving tea quality are achieved.