Regeneration control hydraulic system

A regeneration control hydraulic system for an excavator, comprising:

• at least one hydraulic pump configured to spray a working oil;
• an actuator which configured to work by a supply of the working oil from the at least one hydraulic pump;
• a regeneration oil path configured to send a return oil as a regeneration oil to a cavity having a negative pressure of the actuator, wherein the return oil is the working oil discharged from the actuator, the regeneration oil path is provided with a regeneration valve and a first control valve, and the first control valve is configured to control the regeneration oil to enter the cavity having the negative pressure of the actuator when a working device of the excavator retracts inwards;
• and
• a regeneration cut-off oil path, the first control valve being further configured to control the oil to be discharged from the actuator to the regeneration cut-off oil path when the working device of the excavator swings outwards, the regeneration cut-off oil path being configured to send the regeneration oil passing through the regeneration valve or the oil discharged from the actuator to other destinations, and the regeneration cut-off oil path being provided with a regeneration cut-off valve.