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介绍了以VDS-5 型垂钻系统为代表的负液压导向纠斜原理以及自行设计的基于正液压导向纠斜原理的纠斜系统，并论述了液压系统的工作原理、回路设计等内容，通过实验，验证了系统的可行性。
The principle of negative hydraulic guidance skew represented by VDS-5 vertical drilling system is introduced, and the skew system based on positive hydraulic guidance skew principle is designed. The working principle and circuit design of hydraulic system are discussed. Experiments show that the system is feasible.