Insight-HXMT is the first Chinese X-ray astronomy satellite and was launched
to a 550 km orbit on 15th June 2017. The Insight-HXMT consists of three
collimated telescopes HE (20-250keV), ME (5-30 keV) and LE (1-15 keV),
and is characterized by a broad band energy coverage, where at above 20 keV it
has large detection area and, at below 3 keV it has good energy/time
resolution and is free from pile-up problem in observation of the bright
source. The core sciences of the Insight-HXMT are Galactic survey for

discovery of X-ray source and monitoring of the source variability, pointed
observations for observing the BH and NS XRB systems in their bright or
outburst phases, all-sky monitoring GRBs and observation of the GW EM

counterpart. Here I will introduce on behalf of the Insight-HXMT team in
aspects of : the mission and its core sciences, the preliminary results
derived from recent observations including the galaxy cluster and flaring
blazar, the research topics of type-I burst as a probe to XRB accretion
disk/corona and gamma-ray XRBs. Finally I will address a bit as well for
collaboration in multi-wavelength for which radio, optical and soft X-rays
may be the main concerns.