The utility model belongs to an upper arm frame sliding bearing lubrication and detection device for engineering crushers, and relates to the protection for cone crusher upper arm frame sliding bearings. A thermocouple is installed on a bearing cover of an arm frame bearing, a probe is arranged on the thermocouple, and penetrates into the cavity of the arm frame bearing, and the thermocouple is connected with a temperature controller. The upper arm frame sliding bearing lubrication and detection device can find out the phenomenon that an arm frame bearing lacks lubrication oil in time, and avoids damaging the arm frame bearing.