Hamilton principle can be used in holonomic system and intrinsical linear nonholnomic system . the formulas of them are unified . hamiltonian action is stability in intrinsical linear nonholnomic system 本文将hamilton原理应用到本质线性非完整系统,首次证明了在本质线性非完整系统中, hamilton作用量为稳定的作用量;将完整系统和本质线性非完整系统的hamilton原理从形式和本质上统一起来。