Damper mechanism and shock absorber

According to the damper mechanism and the shock absorber, the damper mechanism comprises a first valve sleeve, a supporting pad and a first movable valve, the supporting pad is connected with the second end of the first valve sleeve so that a first containing cavity can be formed between the supporting pad and the first valve sleeve, and a first channel penetrates through the supporting pad in the first direction and is communicated with the exterior of the damper mechanism; the first movable valve comprises an annular attaching face, the annular attaching face is configured to be attached to the surface, facing the first movable valve, of the supporting pad in the state that the first movable valve moves to make contact with the supporting pad, the first valve sleeve further comprises a second channel communicated with the first containing cavity, and the second channel comprises an end extending to the supporting pad. In the radial direction of the first valve sleeve, the end of the second channel and the o