The invention discloses a system for improving connection reliability of network measurement equipment and a method thereof. The system comprises a data processing analysis computer and network measurement equipment; the implementation method comprises the following steps: 1) the data processing analysis computer sends a data request instruction to the network measurement equipment; 2) the networkmeasurement equipment returns the requested data and a state return code to the data processing analysis computer; 3) the data processing analysis computer judges whether the return code is wrong after receiving the returned requested data and the state return code, and returns to step 1) if the return code is wrong, and ends the requesting and receiving of this data if the return code is correct, and performs the requesting and receiving of the next data. The collection frequency can be improved between the network measurement equipment and the data processing analysis computer in the allowable performance of the equipment; the data can be automatically repaired and processed if encountering the unqualified data; and the reliability of the network communication between the network measurement equipment and the data processing analysis computer is improved.