The invention provides a health detection device and a health detection method. The health detection device is applied to load sharing equipment which is connected with a plurality of servers, and is characterized by comprising a query unit and a judging unit, wherein the query unit is used for periodically sending a state query instruction to each of the servers so as to obtain the state parameter of one service process on each of the servers; the judging unit is used for after obtaining the state parameter of each of the servers, judging that the state, directing at the service process, of each of the servers is normal, abnormal or suspended according to the state parameter. According to the health detection device and the health detection method, the overloads of the servers can be avoided.