The invention discloses a cover plate of an anti-overcharge battery, comprising a battery cover plate main body (10); The left and right ends of the battery cover plate main body (10) are respectivelyprovided with a positive electrode pillar (20) and a negative electrode pillar (30); The positive electrode pillar (20) and the negative electrode pillar (30) are mutually insulated from the batterycover plate main body (10); Between that positive electrode post (20) and the battery cov body (10), and between the negative electrode post (30) and the battery cover body (10), a first temperature-controlled memory spring (24) and a second temperature-controlled memory spring (34) are respectively arranged. In addition, the invention also discloses a lithium battery. The invention discloses a lithium battery cover plate for preventing overcharging and application thereof, which is safe and reliable, can effectively prevent hidden safety hazards such as explosion and fire caused by overcharging of the battery, thereby greatly improving the safety of the battery and facilitating wide application, and has great significance in production practice.