This paper attempts to re-assess the import substitution of Taiwan consumption good industry during 1950's. We find that as far as 1950's entire period is concerned, there is no import substitution of Taiwan consumption good industry as some prior studies claimed. We find in addition that for Taiwan consumption good industry during 1950's, import substitution has never been the growth source. Accordingly, the import substitution development strategy adopted by Taiwan government during 1950's is invalid for promoting her economic growth.