High-precision space debris measurements can provide more accurate real-time information on debris targets and enhance the effectiveness of satellite avoidance warnings for space debris. Through the modification of the 1.2 m aperture quantum communication telescope （altitude 3200 m） in Qinghai Province， the satellite laser ranging （SLR） and space debris laser ranging （DLR） experiments were carried out by using a single pulse energy of 1.2 mJ and a repetition rate of 1 kHz picosecond laser， in which the detection range of cooperative satellites has been extended from Low Earth Orbit to Geosynchronous Eearth Orbit， and the ranging accuracy was better than 2 cm. The maximum distance of space debris target measurement is 1620.5 km， the radar cross section （RCS） is 2.41 m²， and the ranging accuracy reaches 10.64 cm.A single laser system has been realized， which can not only carry out centimeter-level high-precision ranging of cooperative targets， but also realize space debris observation. This is the first time in the world to use high repetition frequency and low power laser ranging system to achieve high precision measurement of space debris targets， reflecting the advantages of picosecond laser and high-altitude large-aperture telescope measurement， providing reference for developing space target laser ranging in western China， and providing an effective way for space debris laser ranging system site selection and space debris monitoring capability enhancement.