1. Market research and positioning: First, determine the target market and audience groups, understand their needs and preferences, so as to provide them with suitable products.

2. Product design and manufacturing: According to the results of market research, design children's clothing products that meet the needs of the target market, and select suitable manufacturing partners for production.

3. Customs and regulations: Cross-border trade needs to comply with the customs and regulatory requirements of various countries. Ensure that the product meets the standards and certification requirements of the importing country, and prepare the required documents and certificates.

4. Channel selection: Choose a suitable sales channel, which can be an online channel such as an e-commerce platform or an offline channel such as a retail store. Determine the channel selection based on the characteristics and consumption habits of the target market.

5. Marketing: Carry out brand publicity and promotion activities to increase the popularity and reputation of the product. Marketing can be carried out through advertising, social media, public relations activities, etc.

6. Supply chain management: Establish a sound supply chain management system to ensure the smooth production and logistics of products. Cooperate with logistics service providers to handle cross-border transportation and customs clearance procedures.

7. After-sales service: Provide good after-sales service and customer support, including return and exchange policies, after-sales consultation, etc., to build consumer trust and loyalty.

8. Sales data analysis and feedback: Regularly analyze sales data and market feedback information, evaluate product sales and market performance, and adjust and optimize strategies in a timely manner.