“意识的能动性”是许多哲学家坚持意志自由的重要依据。本文根据现代心理学的有关研究指出，意识并不像某些哲学家们想象的那样能够自由地左右我们的行为选择，人的意识对自我和外部世界的反映和认识并不是可以任意改变的，而是受到各种生理和心理因素的影响而具有明显的倾向和确定性。影响意识倾向性的生理和心理因素主要有：1、事件同自我的相关性；2、个体的需要；3、个体的人生经历；4、个体的人格特征；5、个体的认识结构和能力。这几方面的因素在个体身上的交织与综合，在很大程度上决定着一个人对外部世界的知觉和判断，从而也决定着一个人的行为选择。因此，在每一特定事件中，由于这些因素都是相对确定了的，因而个体的行为选择就总是会被这些因素综合起来的合力推向一个大体确定了的方向。因此，那种认为意识的能动作用可以轻易改变一个人的认知、判断和行为选择的观点是不正确的。 The “motivation of consciousness” is an important basis for many philosophers to uphold their freedom of will. According to the relevant research of modern psychology, this paper points out that consciousness is not free to control our choice of behavior as some philosophers think. The reflection and understanding of human consciousness on the self and the outside world can not be changed arbitrarily. But by a variety of physiological and psychological factors have obvious tendency and certainty. Physiological and psychological factors that influence the tendencies of consciousness mainly include: 1, the correlation between events and self; 2, the needs of individuals; 3, personal life experiences; 4, personality traits of individuals; 5, the cognitive structure and ability of individuals. The interweaving and integration of these factors on individuals determines to a large extent the perception and judgment of one person on the outside world, which also determines one’s behavior choices. Therefore, in each particular event, as these factors are relatively well defined, the individual’s choice of behavior is always pushed to a generally defined direction by the combined forces of these factors. Therefore, the notion that the active role of consciousness can easily change one’s perception, judgment, and choice of behavior is not correct.