The invention discloses a method for controlling time type vehicle unlocking/locking. The method comprises the following steps of enabling a server to generate an unlocking dynamic password according to the vehicle information and unlocking time of the existing vehicle, and displaying; enabling the vehicle to perform unlocking verification on the obtained unlocking dynamic password; after the unlocking verification is successful, successfully unlocking the vehicle, and changing the vehicle state information of the vehicle into the successful unlocking state; after the vehicle is used, enabling the vehicle to generate a locking dynamic password according to the vehicle information and the locking time, and displaying; enabling the server to perform locking verification on the obtained locking dynamic password; after the locking verification is successful, successfully locking the vehicle, and changing the vehicle state information on the vehicle into the successful locking state. The method has the advantage that a dynamic password is generated through a transaction platform and a vehicle intelligent lock, and then a public vehicle is locked/unlocked, namely the use/return state, so as to solve the problem of password stealing, and also solve the problems of stealing and waste by illegal persons.