Data query method and device, equipment and storage medium

The invention provides a data query method, apparatus and device, and a computer readable storage medium. The method comprises the steps of obtaining behavior data sent by a source terminal and a data query request of a first target time period; determining a data access permission of the source terminal according to the behavior data; determining a second target time period according to the data access permission; under the condition that the first target time period and the second target time period meet a preset condition, acquiring data generated and/or stored by the target terminal in the first target time period; and sending the data generated by the target terminal in the first target time period to the source terminal, and determining the data generated and/or stored by the target terminal which can be accessed by the source terminal in the target time period according to the behavior data by acquiring the behavior data of the source terminal. Therefore, the security when the source terminal accesses