This paper describes evaluation on wind resistance performance of roof frame in timber structure subjected to high wind. Pulling -up load tests were carried out to evaluate strength of several connection types in rafter or vertical roof strut. By using the result of load test, probabilistic model based on the structural reliability concept was developed for the connections in edge of eaves and the connections in roof strut under the gable, where lots of high wind-induced damage can be seen. This model showed that the probability of failure starts to increase under instantaneous wind velocity of 40 to 70m/s in the former connections, 50 to 70m/s in the latter ones, respectively. Based on results of the probabilistic analysis, the authors tried to propose construction method of the related roof connections which can be suitable to the mean wind speed considered in the construction site.