A fuel cell power pack for a drone and a state information monitoring method thereof are provided. The fuel cell power pack for a drone may include a power pack main body coupled to the drone, a fuel cell stack module disposed in the power pack main body to receive fuel and air to supply a power to the drone, a state information detector configured to detect state information of the fuel cell stack module, a power pack communicator configured to transmit information to an outside of the power pack main body or receive the information from the outside thereof by wire or wirelessly, and a power pack controller configured to control the power pack communicator to transmit the state information of the fuel cell stack module detected by the state information detector to the outside of the power pack main body.