The inventiom relates to a limiting apparatus of electric machinery, capable of limiting the use in the presetermined time for the problem that children watch TV, use personal computer or the like without abstinence in home. A timer, which is set to be used in three time modes such as a continuous use, a use in a predetermined time, a stopping use, is added on a body or CRT of the image medium electronic machine such as TV, personal computer, ect; power supply is supplied to the machine in case of a setting time, and the user is known in advance in the warning form before the predetermined time of the timer is closed. |