With the development of drilling technology, the number of large displacement and section horizontal wells is increasing.The large friction and pressure support during the drilling process not only seriously affect the mechanical drilling speed ,but also cause downhole failures easily such as differential pressure jamming ,especially when sliding drilling ，insufficiently apply real and effective drilling pressure to the bit ,which reduces the drilling efficiency and prolongs the well construction period. The Agitator developed by TianHe Group, through virtual fluid simulation and other technologies, optimizes the structural design and performance parameters and is suitable for various complex drilling conditions, effectively solving the above problems.