diff --git a/database/migrations/2022_10_20_160027_create_meteorological_monitoring_hourly_logs_table.php b/database/migrations/2022_10_20_160027_create_meteorological_monitoring_hourly_logs_table.php
index ba50830..2c3c30f 100644
--- a/database/migrations/2022_10_20_160027_create_meteorological_monitoring_hourly_logs_table.php
+++ b/database/migrations/2022_10_20_160027_create_meteorological_monitoring_hourly_logs_table.php
@@ -35,6 +35,9 @@ return new class extends Migration
             $table->integer('pm10')->nullable()->comment('PM10浓度 (单位: ug/m3)');
             $table->timestamp('monitored_at')->comment('监控时间(小时)');
             $table->timestamps();
+
+            $table->index('agricultural_base_id');
+            $table->unique(['device_id', 'monitored_at']);
         });
     }