The invention discloses a home watching method having an access recognition function and a home watching system having the access recognition function. The entering situation and the leaving situationof family members can be judged through the pressing order of a first pad member and a second pad member so that the detection method is simple and reliable. A first pressure detector and a second pressure detector are installed on the bottom part of the first pad member and the second pad member respectively and are not liable to be discovered so as to avoid being damaged. The family members canknow the access situation of the family members during each time period through a mobile terminal so as to discover the abnormal situation in time and determine the identity of the entered person according to different pressure values. If accessing of someone is detected when the whole family go out, the situation can be discovered in time and alarmed so that the antitheft effect can be realized,accessing of the family members can be prompted and thus the family members are enabled to have reasonable arrangement of life by the prompting function.