Database
[{item_scenarios:[{_id:"6050545060f40107076f2755",scenario_id:"1",scenario_tree_point:[]},{_id:"6050546160f40107076f2756",scenario_id:"1",scenario_tree_point:[]},{_id:"6050549b60f40107076f2757",scenario_id:"1",scenario_tree_point:[]},{_id:"6050698e140a110a11365aad",scenario_id:"604f3376dd79d8118a6990fe",scenario_tree_point:[]}],}]
Query
db.collection.aggregate([{$project:{item_scenarios:{$filter:{input:"$item_scenarios",as:"scenario",cond:{$eq:["$$scenario.scenario_id","1"]}}}}}])