A vehicle-mounted health and safety driving assistance device, comprising: a steering wheel cover, which adheres to a steering wheel of a vehicle and which is characterized in that an electrode (1) is provided on a surface of the steering wheel cover to act as an external medium for use in collecting an electrocardio signal and an equipment main body (2) which is fixed to the steering wheel, an inner portion of the equipment main body comprising a power supply module (23), a main control module (22), an electrocardio collection and processing module (20), a storage module (21), and a posture sensor module (24) the power supply module (23) is responsible for supplying power to the entire device the main control module (22) is connected to the electrocardio collection and processing module (20), the storage module (21) and the posture sensor module (24) respectively the electrocardio collection and processing module (20) is also connected to the electrode (1). Since the posture sensor module (24) may determine a running state, by combining the same with the electrocardio collection and processing module (20), detection of the driving posture of a driver is more reasonable and accurate, thereby effectively preventing the situation wherein the normal operation of a steering wheel by a driver is determined to be a bad driving habit when turning a vehicle or when shifting gears.Linvention concerne un dispositif daide à la conduite de santé et de sécurité, monté sur véhicule, comprenant : un couvercle de volant, qui adhère à un volant dun véhicule et qui est caractérisé en ce quune électrode (1) est disposée sur une surface du couvercle de volant en vue dagir en tant que milieu externe destiné à être utilisé dans la collecte dun signal délectrocardiogramme et un corps principal déquipement (2) qui est fixé au volant, une partie interne du corps principal déquipement comprenant un module dalimentation électrique (23), un module de commande principal (22), un module de coll
