The invention relates to the field of 
software testing and provides an interface testing method and device, a 
client and a computer readable storage medium. The interface testing method is used for testing an interface to be tested. The interface testing method comprises the steps that according to a tree-shaped 
structure chart, a target testing case of the interface to be tested is acquired; thetarget testing case is traversed, and case 
data information is obtained, wherein the case 
data information comprises request 
data information and response data information, and the case data information is formed by unlabeled languages; according to the request data information, a testing protocol used for testing the interface to be tested is generated; based on the testing protocol, an interfacetesting request is sent to a 
server, and interface response data fed back by the 
server is received; the interface response data is compared with the response data information, and thus a testing result is obtained. Compared with the prior art, the testing case can be quickly modified by dragging a node of the tree-shaped 
structure chart, meanwhile the testing case can be directly used for automatic interface testing, and the interface testing method is high in 
usability and testing efficiency.