1. Customer service: Counter staff of securities companies need to provide professional stock investment consulting and services to customers, including relevant rules, operation procedures and risk tips of stock trading, to help customers solve problems encountered in the process of stock trading.

2. Transaction settlement: The staff at the brokerage counter need to assist clients in completing stock transactions, including accepting clients' entrustment, checking entrustment information, confirming entrusted transactions, and ensuring smooth settlement of transactions.