Disclosed is a mobile phone capable of realizing multi-lead electrocardiogram examination and electrocardiogram monitoring. Part of a body of the mobile phone is a negative electrode (1), and part of the bottom thereof is a positive electrode (2). The mobile phone is held by a right hand, the bottom electrode (2) and a detection point are in contact to collect electrocardiogram data, such that a complete lead system, i.e. a right-hand lead electrocardiogram, is formed; and a complete conventional standard lead electrocardiogram can also be derived through calculation. Three limb leads of a three-lead-type machine are connected to corresponding positions, the mobile phone is held by the right hand, the bottom electrode (2) is placed at chest lead detection points respectively, and a standard lead electrocardiogram can be collected merely using three leads. The electrocardiogram data collection required by a complete lead system is achieved by means of the mobile phone having only two electrodes, and the data can be directly analyzed or analyzed after being converted into a standard lead electrocardiogram. Electrocardiogram examination, electrocardiogram monitoring or remote electrocardiogram monitoring can also be realized by means of leads, meeting the demands of a patient for an electrocardiogram and electrocardiogram monitoring at any time and anywhere.L'invention concerne un téléphone mobile capable de réaliser un examen d'électrocardiogramme à plusieurs dérivations et une surveillance d'électrocardiogramme. Une partie d'un corps du téléphone mobile est une électrode négative (1), et une partie de son fond est une électrode positive (2). Le téléphone mobile est tenu par une main droite, l'électrode inférieure (2) et un point de détection sont en contact pour collecter des données d'électrocardiogramme, de telle sorte qu'un système de dérivation complet, c'est-à-dire un électrocardiogramme à dérivation à main droite, est formé; et un électrocardiogramme à dérivati