A kind of animal object wearing device includes an ontology, is for wearing one animal of what and at least to cover the cardia of the animal; And a Heartbeat monitor, the what ontology is set at the heart of the animal, detects the heartbeat of the animal with what and exports a heartbeat signal. A kind of seeing-eye dog saddle includes an elastic body, is for wearing one seeing-eye dog of what and at least to cover the cardia of the seeing-eye dog; The what elastic body is arranged at the heart of the seeing-eye dog in one Heartbeat monitor, detects the heartbeat of the seeing-eye dog with what and exports a heartbeat signal; And an alarming device, the heartbeat signal is received with what, a warning is exported when the heartbeat signal one preset range of non-category.一種動物用穿戴裝置,包含一本體,係供穿戴於一動物且至少覆蓋該動物之心臟部位;及一心跳偵測器,設置於該本體鄰近該動物之心臟處,用於偵測該動物之心跳並輸出一心跳訊號。一種導盲犬鞍,包含一彈性本體,係供穿戴於一導盲犬且至少覆蓋該導盲犬之心臟部位;一心跳偵測器,設置於該彈性本體鄰近該導盲犬之心臟處,用於偵測該導盲犬之心跳並輸出一心跳訊號;及一警示裝置,用於接收該心跳訊號,當該心跳訊號非屬一預設範圍時輸出一警告。