Adjustment mechanism for an optical module

The invention discloses an adjustment mechanism, comprising a base, a guide track, a spring, a slider, a fixed member, a translational adjustment bolt, a first rotator, a second rotator, a fixing bolt, and an adjuster. The guide track is connected to a base. At least one spring is fit on the guide track. The slider is fit on the guide track. The fixed member is fixed to the base. The translational adjustment bolt is in a rotation lock and penetrated in the fixed member, and is abutted against the slider. The first rotator is fit in the slider and includes a section. A second rotator is fit on and engages the first rotator. The second rotator is sleeved on the first rotator and clamped at the first rotator. The second rotator is abutted against the slider. The fixing bolt detachably abuts the second rotator and is detachably fastened to the first rotator. The adjuster is connected to the first rotator.