An electronic expansion valve , comprising a valve body , a valve core assembly , an electronic control portion and a stator assembly , wherein the valve core assembly comprises a valve port which is arranged in a valve seat , a valve core and a rotor assembly , and the valve core is movable relative to the valve seat to change opening of the valve port ; the electronic control portion is configured to control the stator assembly , and the rotor assembly is configured to drive the valve core to move; and the electronic expansion valve further comprises a sensor , the sensor is a temperature sensor or a pressure sensor or a temperature and pressure sensor, the electronic control portion comprises an electronic control board , and the stator assembly and the sensor are electrically connected with the electronic control board ; characterized in that the sensor comprises a sensor body , a sensing head and a pin , the sensing head and the pin are respectively arranged at two ends of the sensor body , and the pin is electrically connected with the electronic control board directly; the electronic control portion further comprises a cover body , the cover body is provided with an inner cavity, the electronic control board is arranged in the inner cavity; the cover body comprises an upper housing and a lower housing , and the upper housing and the lower housing are separately formed and are fixedly connected with each other; and the lower housing is provided with a through hole , and at least the pin is capable of passing through the through hole ; and wherein the lower housing is fixed to the stator assembly by injection molding, the electronic control portion and the stator assembly are arranged side by side on a same side of the valve body , the electronic control board is perpendicular to the sensor , and the sensor is parallel to a central axis of the valve core . the valve core assembly comprises a valve port which is arranged in a valve seat , a valve core and a rotor assembly , and the valve core is movable relative to the valve seat to change opening of the valve port ; the electronic control portion is configured to control the stator assembly , and the rotor assembly is configured to drive the valve core to move; and the electronic expansion valve further comprises a sensor , the sensor is a temperature sensor or a pressure sensor or a temperature and pressure sensor, the electronic control portion comprises an electronic control board , and the stator assembly and the sensor are electrically connected with the electronic control board ; characterized in that the sensor comprises a sensor body , a sensing head and a pin , the sensing head and the pin are respectively arranged at two ends of the sensor body , and the pin is electrically connected with the electronic control board directly; the electronic control portion further comprises a cover body , the cover body is provided with an inner cavity, the electronic control board is arranged in the inner cavity; the cover body comprises an upper housing and a lower housing , and the upper housing and the lower housing are separately formed and are fixedly connected with each other; and the lower housing is provided with a through hole , and at least the pin is capable of passing through the through hole ; and wherein the lower housing is fixed to the stator assembly by injection molding, the electronic control portion and the stator assembly are arranged side by side on a same side of the valve body , the electronic control board is perpendicular to the sensor , and the sensor is parallel to a central axis of the valve core . <EOS>