Abstract: The current research was based on the background of life education.736 children,recurited from grade 2,4,6,8,11 in some elementary schools and high schools,were asked to complete their sentences by using "life" and "death".The results showed asfollow:(1)as the grade increased,children's knowledge about life and death was an indepth process gradually changing from vague cognition to image cognition,abstract cognition and reasonable cognition; (2)on the whole,children's psychological experience of life was positive,and with the age increased it became more mature and richer.Their psychological experience of death mainly consisted of sadness and fear.As the grade increased, more and more children began to philosophically experience the meaning and value of death,and a few children became confused of death.

Key words: Life cognition, psychological experience of life, death cognition, psychological experience of death