Abstract: The biology and ecology of the wolf spider were studied by field and laboratory observation. In the experiment, as expected, the spider over wintered with spider lings and adults. It had 2~3 generations each year in LinZhi region.The duration of the 3rd generation was the longest, and that of 2nd generation was the shortest. The spiders began to move into the barley field from the farm land at the beginning of May. In both laboratory and field, the wolf spider had the habit of making burrows and making web bags after the 4th in star during the mating and egg-sac carrying period. Observed by the author, the wolf spider usually is a wanderer and it also can step or jump on the crop, land on the ground and water surface, and even move under water when frightened. The quantity of predation depended on its instar, frequency of ecdysis and gender. Female and male mated several times without cannibalistic behavior. The mean hatching rate of eggs was about89.8%.Females usually have a strong ability to protect their egg-sacs by carrying it in front of thorax when encountering an attacker As expected, the hatched spiderlings made their way safely to the mother's back in aggregation mode. Four to seven days later, they left their mother, dispersed, and attacked prey. Before getting out of the egg-sac, the spiderlings had molted one time at least. Spiderlings matured after molting6~7times. The average of their pre-oviposition period was about5d(3~7d). The oviposition period was11~17d(14davg.). The spiderling stage was 65~142d (98.6davg.). The adult period was 112~168d (115davg.).But the average period of adult female was longer by 34.6d (20~45d)than that of adult male. The sex ratios of female to male were greater than one in all generations except the first. The courtship and mating behaviors of the adult spiders and characteristics of the instars and sub-adult spiders are described in detail in this paper. The surroundings adaptability of the wolf spider is strong and its survival rate from spiderling to maturity was about18.4%~51.3%(31.8%avg.). Its starvation capability is strong too in the laboratory under humidity condition and it survived about36.5d(23~52d) without feeding.