The pump mirror can be used in the laser cavity design, and enhance the reflection times and increase the output power. The pump mirror is coated with all-medium high reflection femtosecond laser film, which can be widely used in all kinds of high precision lasers. Different optical coatings have important performance for femtosecond laser pump mirror device. Our pump mirror is coated with a high reflective film (HR) and an anti-reflective film (AR), which can effectively reduce the interference and diffraction effects caused by the over-strong laser correlation. The reflectivity of HR film to natural light or S-polarized light and P-polarized light can be as high as 99.8% or even close to 100% in a specific optical band range, while the reflectivity of AR film to them can be as low as 0.2% or less, showing superior performance.