This paper presents information flow model and a novel artificial life grid model to construct artificial life computer ecosystem environment. The life grid model is a three-dimensional information space: (time, artificial life node, and location). The former two dimensions identify the contents or function of artificial life systems, and the third-dimension identifies the location where an artificial life system exists. We depart the artificial life node architecture into four levels: artificial life system application level, engine library level, sensor level, and the connectivity level. In information flow model, we present the ALife information definition, characteristic and four kinds of information communication mechanisms (broad-diffuse, Multi-diffuse, uni-diffuse and anydiffuse).