| Document and Entity Information | 3 Months Ended |
| Mar. 31, 2021shares | |
| Document and Entity Information [Abstract] | |
| Document Type | 10-Q |
| Amendment Flag | false |
| Document Period End Date | Mar. 31, 2021 |
| Document Fiscal Year Focus | 2021 |
| Document Fiscal Period Focus | Q1 |
| Entity Registrant Name | KID CASTLE EDUCATIONAL CORPORATION |
| Entity Central Index Key | 0001049011 |
| Current Fiscal Year End Date | --12-31 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Common Stock, Shares Outstanding | 922,324,706 |
| Entity Current Reporting Status | Yes |
| Entity Interactive Data Current | Yes |
| Entity Shell Company | false |
| Entity Small Business | true |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) | Mar. 31, 2021 | Dec. 31, 2020 |
| Current Assets: | ||
| Cash and cash equivalents | $ 89,021 | $ 1,630 |
| Investments - trading securities | 387,376 | 91,282 |
| Total Current Assets | 476,397 | 92,912 |
| Property and equipment, net | 6,936 | 7,745 |
| Investments - real estate | 674,846 | 664,111 |
| Crypto Currency Mining Rigs | 9,200 | 0 |
| Total assets | 690,981 | 764,767 |
| Current Liabilities: | ||
| Accrued expenses | 25,142 | 4,542 |
| Accrued interest | 4,218 | 2,812 |
| Marginal loan payable | 538 | 115 |
| Line of credit - related party, current portion | 13,232 | 63,632 |
| Total Current Liabilities | 43,130 | 71,102 |
| Long-Term Liabilities: | ||
| Notes payable - net of current portion | 150,000 | 150,000 |
| Line of credit - related party, net of current portion | 542,051 | 540,524 |
| Total Long-Term Liabilities | 692,051 | 690,524 |
| Total Liabilities | $ 735,182 | $ 761,626 |
| STOCKHOLDERS' EQUITY (DEFICIT) | ||
| Preferred stock, $.00001 par value, 1,000,000 shares authorized, 1,000,000 and 1,000,000 issued and outstanding as at March 31, 2021 and December 31, 2020 respectively. | 10 | 10 |
| Common Stock, $0.00001 par value, 1,000,000,000 shares authorized, 922,324,706 issued and outstanding as at March 31, 2021 and December 31, 2020 respectively | 9,223 | 9,223 |
| Additional paid in capital | $ 7,873,783 | $ 7,873,783 |
| Accumulated deficit | (7,450,820) | (7,879,875) |
| Total KDCE Stockholders' equity | 380,333 | 2,764 |
| Non-controlling Interest | 51,864 | 377 |
| Total Stockholders' Equity | 432,196 | 3,141 |
| Total Liabilities and Stockholders' Equity | $ 1,167,378 | $ 764,767 |
| CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) | 3 Months Ended | |
| Mar. 31, 2021 | Mar. 31, 2020 | |
| Revenue: | ||
| Sales of investments under trading securities | $ 665,667 | $ 0 |
| Sales of investment under property | 0 | 0 |
| Total Revenue | 665,667 | 0 |
| Cost of goods sold: | ||
| Cost of sales - trading securities | 204,415 | 0 |
| Cost of sales - property | 0 | |
| Total cost of goods sold | 204,415 | 0 |
| Gross profit | 461,251 | 0 |
| Operating expenses: | ||
| General and administrative | 15,004 | 15,497 |
| Professional fees | 58,582 | 10,525 |
| Advertising and promotions | 1,649 | 3,497 |
| Interest expense | 1,458 | 21,253 |
| Total operating expenses | 76,693 | 50,772 |
| Income (loss) from operations | 384,558 | (50,772) |
| Other Income | ||
| Dividends | 30 | |
| Unrealized gain (loss) | 44,467 | 0 |
| Net Income (Loss) | $ 429,055 | $ (50,772) |
| Earnings (loss) per Share: Basic and Diluted | $ 0.0005 | $ 0 |
| Weighted Average Common Shares Outstanding: Basic and Diluted | 922,324,706 | 922,324,706 |
| STATEMENTS OF CASHFLOWS (Unaudited) - USD ($) | 3 Months Ended | |
| Mar. 31, 2021 | Mar. 31, 2020 | |
| Cash Flows from Operating Activities: | ||
| Net Income (Loss) | $ 429,055 | $ (50,772) |
| Adjustments to reconcile net income (loss) to net cash used in operating activities: | ||
| Inventory Asset: Trading Securities | (296,093) | 0 |
| Depreciation | 809 | 0 |
| Other Accrued Liabilities | 7,506 | 119 |
| Net Cash Flows Used in Operating Activities | 141,277 | (50,653) |
| Cash flows from investing activities: | ||
| Computer and Internet | 0 | |
| Payment for real estate investment | (10,735) | 41,579 |
| Crypto Currency Mining Rigs | (9,200) | |
| Cash flows from financing activities: | ||
| Proceeds from issuance of notes payable | 0 | 0 |
| Proceeds from issuance of marginal loan payable | 422 | |
| Line of credit - short term - related party | 14,500 | 0 |
| Line of credit - long term - related party | (48,872) | (18,748) |
| Proceeds from issuance of stocks | 0 | 25,694 |
| New Cash Flows from Financing Activities | (33,950) | 6,946 |
| Net Change in Cash: | 87,392 | (2,128) |
| Beginning cash: | 1,627 | 10,878 |
| Total Cash flows from investing activities: | 0 | |
| Ending Cash: | 89,018 | 8,750 |
| Supplemental Disclosures of Cash Flow: | ||
| Cash paid for interest | 1,458 | 12 |
| Cash paid for tax | $ 0 | $ 0 |
