The present invention provides an intelligent device for counting and monitoring density of pest, which can connect to a trapping device and an insect collecting device. The intelligent device for counting and monitoring density of pest includes a main base having a body, a hole through the body, a sensing portion disposed on the body to sense the signal change caused by a pest flying through the hole, a counter connected to the sensing portion and having a counting portion connected to the sensing portion for calculating and analyzing the signal change of the sensing portion, a monitoring portion connected to the counting portion, a transmitting and receiving signal portion respectively connected to the counting portion and the monitoring portion.本發明係揭露一種智慧型害蟲計數暨密度監控裝置，其係得與連接一誘蟲裝置及一集蟲裝置結合，而包含有一本體，具有一身部，一通孔，貫設於該身部，一感測部，設於該身部而能感測穿經該通孔之一蟲體所造成之訊號變化；一計數器，連接該感測部，具有一計數部，與該感測部相連，用以計算及分析該感測部之訊號變化，一監控部，連接該計數部，一收發訊號部，分別與該計數部及該監控部相連接。
