The study of space and time relations is an important research field in cognitive linguistics. This article is based on an experimental study on the psychological reality on cognition of space and time for Chinese speakers. It first proposes a new classification of space and time metaphors on the basis of reference contexts, which is different from traditional classification. The experiment is conducted on two groups of Chinese university students and studies the impact of their cognitive patterns of space on their cognition of time and the psychological reality. It shows that Chinese prefers to use “left” to refer to “front”, and “right” to refer to “back”. It also shows mother tongue plays an important role in shaping the cognition on space and time, but what factors lead to such differences needs further study.