Excavator hydraulic control system and excavator

The invention relates to the field of excavators, and discloses an excavator hydraulic control system and an excavator. The excavator hydraulic control system comprises a main pump coaxially connected with a pilot pump, and the main pump and the pilot pump are both connected with an oil tank; the main valve is connected with the main pump through a main oil inlet path; the first electromagnetic valve and the second electromagnetic valve are connected with the pilot pump through a pilot main oil way, the first electromagnetic valve is connected to one end of the main valve through a first pilot oil way, and the second electromagnetic valve is connected to the other end of the main valve through a second pilot oil way; the back pressure valve is connected with the first electromagnetic valve through a first pilot oil way and connected with the oil tank through a pilot oil return way; the accessory oil cylinder and the rodless cavity are connected with the main valve through a first oil way, the rod cavity is co