This article is semi review our result about interaction and structure formation in liquid crystal colloids and emulsion. We treat colloidal and emulsion systems in liquid crystal using effectively describing the elastic interaction. Here we consider a system whose interactions are presumably well-understood and the phase transition in which can be studied in the scale of macro particle resolution - the model system allowing to study the mechanisms of the structural phase transitions. We presented analytical results of possible structures for suspension of macro particles in liquid crystal. We have shown that cellular structure formation can occur in liquid crystals for realistic values of temperature and macroparticle concentration.