Dr. Tie Liu is an observational radio astronomer at Shanghai Astronomical Observatory (SHAO) with expertise on (sub)millimeter observations with both single dishes (e.g., JCMT) and interferometers (e.g. ALMA). He obtained his PhD at Peking University in 2013. After that, he did postdoc studies in Chile, South Korea (KASI) and US (EAO). Since September 2019, he worked at SHAO as an associate professor. His main research interests are focused on star formation in Milky Way clouds. Dr. Liu currently serves as the principle investigators (PI) of several survey programs at the JCMT 15-m telescope, TRAO 14-m radio telescope and The Atacama Large Millimeter/submillimeter Array (ALMA). Currently he also serves as a member of the Time Allocation Committee (TAC) for the JCMT 15-m telescope and the FAST 500-m telescope.Stars form in the densest parts of molecular clouds, called dense cores. However, it is stillunclear how dense cores fragment and collapse to form single stars or multiple stellarsystems. To deepen our understandings of star formation in our Galaxy, we have initiatedtwo survey-type programs at ALMA, ALMASOP and ATOMS. In ALMASOP (ALMA Survey of Orion PGCCs), we observed 72 low-mass cold dense cores in Orion complex with extremely high resolution (~100 au) to systematically investigate the fragmentation of starless cores and early evolution of protostellar objects. The ATOMS, standing for ALMA Three-millimeter Observations of Massive Star-forming regions, survey has observed 146 active star-forming regions with ALMA band 3, aiming to systematically investigate the spatial distribution of various dense gas tracers in a large sample of Galactic massive clumps, to study the roles of stellar feedback in star formation, and tocharacterize filamentary structures inside massive clumps. In this talk, I will introduce thepresent status and future plans for these two projects.