The invention discloses an information joint monitoring apparatus for warning on geomagnetic activity induced cardiovascular and cerebrovascular events, comprising a test bracelet and a geomagnetic field prediction data receiving and transmitting component built in a cellphone, wherein a body of the test bracelet is provided with an electrocardiogram sensor, a data acquisition chip, a core processing chip, a status display and an information receiving module; the electrocardiogram sensor, the data acquisition chip, the core processing chip and the status display are connected in sequence, and the information receiving module is connected with the core processing chip; the geomagnetic field prediction data receiving and transmitting component built in the cellphone is connected with the information receiving module; the information joint monitoring apparatus is simple in structure and convenient to operate, carries out comprehensive judgment by integrating the measurement of electrocardiogram data and automatic acquisition of geomagnetic field prediction data, can provide warnings for a patient with cardiovascular and cerebrovascular diseases who might be under potential threats, and is suitable for industrial production and marketing application.