Abstract:A study on the effect of stocking density and water temperature on the growth of juvenile white spot pike Esox lucius was conducted. During the expedraental period, water temperature, pH, dissolved oxygen (DO) and ammonia- N level were measured once a day respectively. The major environmental factors were controlled at the same levels in each experimental tank where DO was beyond 5.5 mg? L^-1. White spot pikes weighing (20 ?0.31 ) g( mean ?SE) were reared in different stocking density( 8, 16, 24, 32 and40 ind?m^- 3) and water temperatures(18 ℃,21 ℃,24 ℃,27 ℃ and CT)in greenhouse for 30 days. At the end of the experiment, fishes were weighed and data analyzed by ANOVA and correlation methods using SPSS software. Growth performance of the fish was significantly affected by water temperature and stocking density. Daily weight gain, specific growth rate, growth efficiency,ration were significantly decreased with increasing densities, maximum SGR(6.282 ?0.022) occurred in 8 ind?m^- 3. But for net yield, they were much higher in group 24 and 16 ind?m^- 3; With temperature increased, daily weight gain, specific growth rate, growth efficiency increased firstly and then decreased, and reached a maximum ( SGR = 5. 667 ? 0. 041 ) at 24 ℃. There was significant( P 〈 0.01 ) negative correlation between density and SGR [ SGR = 7.30 - 0. 122SD, r^2 = 0. 9927 ], and there was significant correlation between temperature and SGR[SGR = -0. 047T^2 + 2. 169T- 19.56, r^2 = 0. 8342]. Based on the regression equation, the fish achieved the biggest SGR (5. 396 % ) at 23.11 ℃. Compared with previous studies, the optimal water temperature is generally lower for white spot pike cultured in greenhouse, and it can be raised in greenhouse successfully if the water temperature and stocking density are well controlled. During the experiments living food were fed, but commercial food for white spot pike is still a problem to be solved.