In order to treat the waste drilling fluid produced during geological drilling， the overall structure design of the waste slurry treatment equipment FJS-1A is carried out in combination with the waste drilling fluid treatment process flow. The working principle and main performance parameters of the equipment are introduced. The laboratory test and field test results of Qinghai Gonghe Dry-heat Rock Drilling Project show that the gel breaking flocculation module set by the waste slurry treatment equipment FJS-1A can effectively destroy the stable system of drilling fluid and separate the solid-liquid. The solid-liquid separation module can effectively separate the solid phase and waste water， and the oxidation module can effectively treat the waste water. The final treated waste water can reach the national sewage secondary discharge standard and meet the treatment requirements of waste drilling fluid in geological drilling. The successful development of this equipment can provide some reference for green exploration.