A charging system for an electric vehicle, comprising: a power battery; a first charging interface and a second charging interface connected with an external power source respectively; a first controlled charging circuit connected between the power battery and the first charging interface, and a second controlled charging circuit connected between the power battery and the second charging interface; and a controller connected with the first charging interface and the second charging interface respectively, characterized by, during a charge, the controller is configured to: control the first controlled charging circuit to start to establish a charging path between the power battery and the first charging interface until the first controlled charging circuit enters a half-load operation state; control the second controlled charging circuit to start to establish a charging path between the power battery and the second charging interface until the second controlled charging circuit enters a half-load operation state; adjust an operation power of the first controlled charging circuit and an operation power of the second controlled charging circuit so as to make the first controlled charging circuit and the second controlled charging circuit enter a full-load operation state respectively. a power battery; a first charging interface and a second charging interface connected with an external power source respectively; a first controlled charging circuit connected between the power battery and the first charging interface, and a second controlled charging circuit connected between the power battery and the second charging interface; and a controller connected with the first charging interface and the second charging interface respectively, characterized by, during a charge, the controller is configured to: control the first controlled charging circuit to start to establish a charging path between the power battery and the first charging interface until the first controlled charging circuit enters a half-load operation state; control the second controlled charging circuit to start to establish a charging path between the power battery and the second charging interface until the second controlled charging circuit enters a half-load operation state; adjust an operation power of the first controlled charging circuit and an operation power of the second controlled charging circuit so as to make the first controlled charging circuit and the second controlled charging circuit enter a full-load operation state respectively. control the first controlled charging circuit to start to establish a charging path between the power battery and the first charging interface until the first controlled charging circuit enters a half-load operation state; control the second controlled charging circuit to start to establish a charging path between the power battery and the second charging interface until the second controlled charging circuit enters a half-load operation state; adjust an operation power of the first controlled charging circuit and an operation power of the second controlled charging circuit so as to make the first controlled charging circuit and the second controlled charging circuit enter a full-load operation state respectively.