Abstract: Provided is a vehicle control device that ensures normal control even when a program including an error is distributed. A vehicle control device includes a calculation unit and a memory, and updates software stored in the memory, and the vehicle control device includes a communication unit which receives encrypted software, a decrypting unit which decrypts the encrypted software into a plaintext, a rewriting unit which is set in the memory and stores the decrypted software, and a determination unit which collates first collation information set in advance in the memory, second collation information given to the software, and the first collation information, determines whether or not to store the decrypted software based on a collation result, and selects the decrypted software as software for next activation when the decrypted software is stored.