The utility model discloses a remote operation control device of a high-voltage cable branching box. The signal input end of an optical receiving circuit in an optical transmitter and receiver communicates with a computer of a power distribution service center by an optical fiber cable; the signal output end of the optical receiving circuit is connected with the signal input end of a signal conversion judgment circuit; the signal output end of the signal conversion judgment circuit is respectively connected with the signal input ends of an operation control circuit of a first power supply circuit breaker and an operation control circuit of a second power supply circuit breaker; the state signal output ends of the operation control circuit of the first power supply circuit breaker and the operation control circuit of the second power supply circuit breaker are connected with the signal input end of an optical transmitting circuit in the optical transmitter and receiver; and the signal output end of the optical transmitting circuit communicates with the computer of the power distribution service center by an optical fiber cable. In the remote operation control device, the unnecessary loss can be reduced, so that the electric reliability is improved and the social benefits of power supply enterprises are increased.