The concentrated solution for hydraulic supports is developed with special funding from the Ministry of Science and Technology of China. It is prepared based on vegetable oil and is an upgraded product of traditional emulsified oil. This technology has won the second prize of China Coal Industry Science and Technology Award. It exhibits excellent stability, lubricity, rust resistance, adaptability to sealing materials, and biodegradability. It is less prone to oil and soap precipitation, significantly reducing the workload of dismantling, cleaning filters, valves, and liquid tanks. It provides comprehensive protection for hydraulic supports and reduces the overall cost of coal mining. This product possesses the following technical features: 1. It is environmentally friendly and exhibits good biodegradability; 2. It demonstrates excellent adaptability to water quality, accommodating water hardness ranging from 0 to 2000mg/L in mine water; 3. It has good compatibility with sealing materials, such as polyurethane, nitrile rubber, and polyoxymethylene; 4. It offers high cost-effectiveness, reduces system blockages, and lowers the overall cost of coal mining.