The article examines the features of evidentiary activity in simplified proceedings in arbitration proceedings. It is concluded that such features are expressed in the clear stages of proving, the possibility of adverse consequences for persons involved in the case in the event of non-compliance with deadlines for submitting evidence and documents, in the absentee and written communication of persons involved in the case with the court and with each other during the evidentiary process, in the limitation of the use of certain means of evidence, and in the special procedure for their examination, verification, and evaluation.