Abstract: The CORONAS program was the most successful space missions between recent Russian space programs. There were 3 satellites (1994, 2001 and 2009) with set of instruments for investigation of the Sun in spectral range from hard X-ray to optical as well as instruments for energetic particles and neutrons detection. LPI participated in all 3 missions with complex of X-ray and EUV telescopes and spectoheliometers. The complex observation with these sets of instruments provided a lot of information about processes in solar corona. In the talk I will present some features of the instruments and the main results of the investigations of different processes in corona: hot points, microflare , macro spicules, eruptions of plasma etc. The new solar space experiments developed in LPI will be presented as well.