Coverage and connectivity are basic problems in WSN. This paper studies distributed coverage and connection hole repairing scheme (DHCRS) based on the probabilistic sensing model in hybrid WSN. This method detects probabilistic coverage holes and builds the model of their repairing radius. It also creates relationship model between the repairing radius and the repairing displacement of mobile sensor. This displacement not only determines the priority of the hole with its area, but also confirms the destination of mobile sensor in repairing circle of coverage hole. Once mobile node moved to this location, coverage hole simultaneously satisfy minimum detection probability and connectivity. Each mobile sensor repairs the hole of the highest priority. Simulation results show the proposed algorithm effectively obtains better probabilistic coverage rate and maintains the network connectivity at the same time.