An electric shaver, whereim the electric shaver comprises a machine body and a cutter head that are connected to each other, wherein the machine body comprises a housing, a control chip and a driving component, wherein the control chip and the driving component are provided within the housing, and a head portion induction element is provided on the cutter head; the cutter head is in transmission connection with the driving component, and both the head portion induction element and the driving component are connected to the control chip; and the control chip is configured to control the driving component to be started when receiving a signal from the head portion induction element; the cutter head can be closed or opened relative to the machine body, wherein when the cutter head is closed relative to the machine body, the driving component is in transmission connection with the cutter head, and when the cutter head is opened relative to the machine body, the driving component is separated from the cutter head; and the electric shaver further comprises a guide assembly, the guide assembly is connected to the control chip, when the cutter head is closed relative to the machine body, the guide assembly is communicated to the head portion induction element, so that the control chip is communicated to the head portion induction element; and when the cutter head is opened relative to the machine body, the guide assembly is disconnected from the head portion induction element, so that the control chip is disconnected from the head portion induction element. wherein the cutter head further comprises a cutter net cover and an inner blade provided inside the cutter net cover; and the head portion induction element comprises the cutter net cover, and the control chip can be communicated to the cutter net cover, so as to be configured to control the driving component to be started to drive the inner blade to work, or control the driving component to be turned off to make the inner blade stop working, when detecting that an electrical signal carried by the cutter net cover changes. whereim the electric shaver comprises a machine body and a cutter head that are connected to each other, wherein the machine body comprises a housing, a control chip and a driving component, wherein the control chip and the driving component are provided within the housing, and a head portion induction element is provided on the cutter head; the cutter head is in transmission connection with the driving component, and both the head portion induction element and the driving component are connected to the control chip; and the control chip is configured to control the driving component to be started when receiving a signal from the head portion induction element; the cutter head can be closed or opened relative to the machine body, wherein when the cutter head is closed relative to the machine body, the driving component is in transmission connection with the cutter head, and when the cutter head is opened relative to the machine body, the driving component is separated from the cutter head; and the electric shaver further comprises a guide assembly, the guide assembly is connected to the control chip, when the cutter head is closed relative to the machine body, the guide assembly is communicated to the head portion induction element, so that the control chip is communicated to the head portion induction element; and when the cutter head is opened relative to the machine body, the guide assembly is disconnected from the head portion induction element, so that the control chip is disconnected from the head portion induction element. wherein the cutter head further comprises a cutter net cover and an inner blade provided inside the cutter net cover; and the head portion induction element comprises the cutter net cover, and the control chip can be communicated to the cutter net cover, so as to be configured to control the driving component to be started to drive the inner blade to work, or control the driving component to be turned off to make the inner blade stop working, when detecting that an electrical signal carried by the cutter net cover changes.