To provide a test environment which allows an accurate test depending upon an environment of a web service provider to be performed without requiring developer's stub development work in a test support system of a web service requester.

A test environment construction device 101 constituting a test support system 100 acquires various information of a WSDL document 162, an access condition file 163, and stub data 164 from a web service provider 160 as a test environment of a web service requester 120 generated by a developer 110 and generates a stub 140 provided with an access condition check module 103 for performing check based on the access condition file 163 defining an environment dependent condition, together with a data transmission/reception module 141.