The invention discloses an excavator chassis with a night vision hard light device. The excavator chassis comprises caterpillar bands, a walking shelf, a fixed outer ring, an inner ring and a gyrationdriving device, the caterpillars are installed at the left side and the right side of the walking shelf, the fixed outer ring is installed at the upper end of the walking shelf and is fixedly connected with the inner ring, and the inner ring is meshed with the gyration driving device; a night vision hard light device is installed at the front end of the walking shelf, and comprises a rotary discbody which is provided with a stepping motor, and an LED hard light integrated headlamp is fixedly installed on the rotary disc body. Multiple market-sold products are adopted by the LED hard light integrated headlamp, and the products which have panels with sizes being four inches or above and 8-10 lamp beads are preferentially adopted. The stepping motor and the LED hard light integrated headlamp are both connected to a storage battery which is installed above the rear end of an excavator body through wires. The rotary night vision hard light device is installed at the front end of the chassis of the excavator, the large-power hard light illumination is provided, a clear illumination environment is provided for operators who carry out construction at night, and the work efficiency is effectively improved; meanwhile, hidden safety hazards can also be removed, and the occurrence of accidents is avoided.