The present disclosure relates to a vehicle data collection device and a method thereof. The vehicle data collection device includes: a data receiver configured to receive vehicle data through a vehicle network; a data collector configured to collect the vehicle data based on a collection information table and a collection status table; a storage configured to store the vehicle data; a controller configured to set a field value in the collection information table, and update the collection status table when the data collector collects the vehicle data and when the vehicle table is transmitted; and a transmitter configured to transmit the vehicle data to a head unit.