The trends of temperature and precipitation in the north of the Northeast China are studied by using the trend coefficient based on the 1951～1999 data over 6 stations in Heilongjiang Province. Results show that during the recent 10 years there exist more significant ascent trend of summer temperature than that in the period 1951~1999 and the descending trends of spring and autumn temperature and that the precipitation trends have obvious difference in various seasons and various locations, exhibiting the complex characteristics.