The invention relates to the field of computer application, in particular to a method and a device for judging program operation resource leakage. The method and the device are used for solving the problems that in the existing method for detecting the program operation resource leakage, false reporting and missing reporting can easily occur, and the universality is poor. The invention also relates to a method and a device for predicting the program operation resource use conditions, and the method and the device are used for solving the problem that in the prior art, the future program operation resource use condition cannot be predicted in the program operation process. The method for predicting the program operation resource use conditions comprises the following steps that the program operation resource use quantity is collected for at least one time in each program operation resource use period; the collected program operation resource use quantity is decomposed into different resource components; by aiming at data included in each kind of resource component, a prediction function of the resource component is determined; a program operation resource general prediction function is determined according to the determined prediction function of each kind of resource component; the program operation resource use conditions are predicted on the basis of the determined general prediction function.