Medium-frequency (MF) radar is one of the few regular technique to investigate the neutral upper atmosphere. It has the advantages of low cost and no effect by the weather which can be used to routinely and continuously measure wind velocities and electron densities, and then study the long term dynamics and structure of the mesosphere and lower thermosphere (MLT) region. Langfang (39.4^oN, 116.7^oE) MF radar was established in May 2009 in China. Since June 4, 2009, the radar has been used to routinely measure winds and electron densities in the MLT region. This MF radar operates at a frequency of 1.99MHz and employs four sets of crossed dipoles for transmitting and receiving. The spaced-antenna technique are applied. Wind measurements are made at 2km height intervals and at time intervals of 4min with full correlation analysis algorithm. With these so far 8-years continuously wind data, the long-term variations of winds, tides and turbulence intensities in mesopause are reported. The motivation is to grasp the features of mesopause over mid-latitude and to help to understand the coupling between high-latitude and low-latitude.