"Theory of Self-command" is an important concept that Smith has been implementing and emphasizing throughout in The Theory of Moral Sentiments, from which we can pry into and reflect Smith's personal holistic ethical thought ethical, through the semantic interpretation and connotation deconstruction of Smith of "Theory of Self-command", for us to fully reveal the Smith of "Theory of Self-command" in the profound value implication, has precious value of theory and practice.