diff --git a/non_plat/em_hidl.te b/non_plat/em_hidl.te
index f124da8..4c095d1 100644
--- a/non_plat/em_hidl.te
+++ b/non_plat/em_hidl.te
@@ -92,3 +92,12 @@ set_prop(em_hidl, mtk_venc_h264_showlog_prop)
 # Purpose: EM should video log mtk_modem_warning_prop
 set_prop(em_hidl, mtk_modem_warning_prop)
 
+# Date :  2018/07/06
+# Operation : EM DEBUG
+# Purpose: EM allow usb vendor_em_usb_prop
+set_prop(em_hidl, vendor_em_usb_prop)
+
+# Date :  2018/07/06
+# Operation : EM DEBUG
+# Purpose: for setting usb otg enable property
+set_prop(em_hidl, vendor_usb_otg_switch)
diff --git a/non_plat/property.te b/non_plat/property.te
index 8ec1c40..07a88c5 100644
--- a/non_plat/property.te
+++ b/non_plat/property.te
@@ -252,3 +252,8 @@ type mtk_emmc_support_prop, property_type, mtk_core_property_type;
 #=============sim system property=============
 type vendor_sim_system_prop, property_type, extended_core_property_type;
 
+#=============em usb property==============
+type vendor_em_usb_prop, property_type, mtk_core_property_type;
+
+#=============allow em to set usb otg enable property  ==============
+type vendor_usb_otg_switch, property_type, mtk_core_property_type;
diff --git a/non_plat/property_contexts b/non_plat/property_contexts
index ef6f642..d9df879 100644
--- a/non_plat/property_contexts
+++ b/non_plat/property_contexts
@@ -274,3 +274,10 @@ ro.vendor.mtk_emmc_support u:object_r:mtk_emmc_support_prop:s0
 
 # MTK connsys log feature
 ro.vendor.connsys.dedicated.log u:object_r:mtk_default_prop:s0
+
+#=============em usb property==============
+vendor.usb.port.mode u:object_r:vendor_em_usb_prop:s0
+vendor.em.usb. u:object_r:vendor_em_usb_prop:s0
+
+#=============allow em to set usb otg switch property  ==============
+persist.vendor.usb.otg.switch u:object_r:vendor_usb_otg_switch:s0