Information query method and device and related equipment

The invention provides an information query method and device and related equipment. The method comprises the following steps: receiving a first input; based on the first input, sending a first request to the first application system, wherein the first request carries permission data, and the permission data is used for determining a first target node having access permission in the first application system based on the first request; and receiving target information sent by the first application system, wherein the target information is information obtained by the first application system through query based on the first target node. Therefore, the secrecy performance of the data in the first application system is improved. 本发明提供一种信息查询方法、装置及相关设备。所述方法包括：接收第一输入；基于所述第一输入，向所述第一应用系统发送第一请求，所述第一请求携带有权限数据，所述权限数据用于确定基于所述第一请求在所述第一应用系统具有访问权限的第一目标节点；接收所述第一应用系统发送的目标信息，所述目标信息为所述第一应用系统基于所述第一目标节点查询得到的信息。这样，本发明实施例提高了第一应用系统中的数据的保密性能。