Aspects of risk analysis in the process of micro-tunnelling are going to be considered with reference to the real-life observations. Some major uncertainties crucial to the success of a trenchless project are listed and discussed. Conclusions expressing local situation are going to be confronted with some other’s countries attitude. Many of the risk aspects for micro-tunnelling process are not fully recognised nor quantified despite many years of application. Some measures should be taken to overcome the problem of low predictability of the process to mitigate risk and negative consequences.