Abstract: PTGMS line Guangzhan 63s test cross with both indica and japonica rice as male parents was carried out in this experiment, producing 32 F1 combinations. The yield character performance of the two type F1 combinations was compared, both correlation analysis and path analysis between grain weight per plant and yield characters of the two type F1 combinations were investigated. The results showed that the seed set rate and 1000-grain weight of F1 combinations had significant heterosis when Guangzhan 63s crossed with indica rice as male parents. The number of panicles and grain weight per plant had extremely significant positive correlation. the seed set rate and grain weight per plant had significant positive correlation; the seed set rate and grain weight per plant of F1 combinations had extremely significant positive correlations when Guangzhan 63s crossed with japonica rice as male parents. The number of grains and grain weight per plant had significant positive correlation. The direct affects of yield characters on grain weight per plant differed from the two type F1 combinations. We proposed that using Guangzhan 63s crossing with indica rice is more advantageous to select practical hybrid combinations of strong heterosis than crossing with japonica rice.