Chapter 1 Hamiltonian Mechanics . (l) 1.1 The Basic Concepts Of Dynamical System (1) 1.2 Differential Form (5) Chapter 2Hamiltonian System . (7) 2.1 Classical Hamiltonian and Generalized Hamiltonian (7) 2.2 Completely Integrable Systems and Nearly Integrable Systems (11) Chapter 3KAM Theorem (15) 3.1 The Classical KAM Theorem (15) 3.2 Lower-Dimensional KAM Theorem (20) 3.3 The Generalized KAM Theorem . (21) Chapter 4Lower-Dimensional Invariant Tori in Hamiltonian System (24) 4.1 Introduction . (24) 4.2 KAM Step (25) 4.3 Iteration Lemma . (29) 4.4 Proof of the Main Result (31) 4.5 Example. (33) ……