Abstract: In view of the problems of hydraulic oil leakage and pipeline corrosion and others that are prone to occur in the traditional mine hoist hydraulic braking system under high pressure and long-term operation,taking the hoists of Tunlan Mine of Xishan Coal Electricity Group as the research background,dynamic closed-loop control theory is adopted,and electromechanical braking technology is introduced for optimization design.Combined with torque motor,deceleration and torque increasing device,and motion conversion device,an efficient electromechanical braking system is constructed.The control system is optimized to achieve accurate braking force output in response to the influence of braking positive pressure and rotational speed on braking performance;Through simulation experiments,it is verified that braking positive pressure and rotational speed are the key influencing factors on braking performance.Increasing braking positive pressure can effectively improve braking deceleration and shorten braking time,while increasing rotational speed reduces deceleration and prolongs braking time.The electromechanical braking system not only has significant advantages in response speed,precise control and other aspects,but also shows good application prospects in improving aspects of safety,reliability,and operational efficiency of mine hoists.